<?xml version="1.0" encoding="us-ascii"?>
<!-- Created by Merrill Corporation -->
<!--Generated by IRIS XBRL Generation Engine-->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureFairValueMeasurementDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureFairValueMeasurementDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureInvestmentsDetails3" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureInvestmentsDetails3" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureSubsequentEventsDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureSubsequentEventsDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureLongTermLoanReceivableDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureLongTermLoanReceivableDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureShortTermBorrowingsDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureShortTermBorrowingsDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureNonControllingInterestsDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureNonControllingInterestsDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails17" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails17" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails18" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails18" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails19" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails19" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails20" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails20" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails22" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails22" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails6" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails6" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureInvestmentsDetails4" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureInvestmentsDetails4" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails3" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails3" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureIntangibleAssetsDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureIntangibleAssetsDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureLandUseRightsDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureLandUseRightsDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureInvestmentsDetails5" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureInvestmentsDetails5" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureInvestmentsDetails40" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureInvestmentsDetails40" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureInvestmentsDetails6" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureInvestmentsDetails6" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureRelatedPartyTransactionsDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureRelatedPartyTransactionsDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureTreasuryStockDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureTreasuryStockDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureInvestmentsDetails2" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureInvestmentsDetails2" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureTaxationDetails5" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureTaxationDetails5" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureEarningsPerShareDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureEarningsPerShareDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails15" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails15" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureLongTermDebtDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureLongTermDebtDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails16" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails16" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails14" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails14" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails7" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails7" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails8" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails8" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails4" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails4" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails11" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails11" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureTaxationDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureTaxationDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureTaxationDetails2" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureTaxationDetails2" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails5" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails5" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureFairValueMeasurementDetails2" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureFairValueMeasurementDetails2" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails10" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails10" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePropertyEquipmentAndSoftwareDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePropertyEquipmentAndSoftwareDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails2" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails2" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureInvestmentsDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureInvestmentsDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureFairValueMeasurementDetails3" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureFairValueMeasurementDetails3" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails12" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesDetails12" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureInvestmentsDetails7" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureInvestmentsDetails7" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureFairValueMeasurementTables" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureFairValueMeasurementTables" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureGoodwillDetails" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureGoodwillDetails" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosureInvestmentsDetails50" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosureInvestmentsDetails50" />
  <link:roleRef roleURI="http://www.ctrip.com/role/StatementOfStockholdersEquity" xlink:type="simple" xlink:href="ctrp-20131231.xsd#StatementOfStockholdersEquity" />
  <link:roleRef roleURI="http://www.ctrip.com/role/StatementOfIncome" xlink:type="simple" xlink:href="ctrp-20131231.xsd#StatementOfIncome" />
  <link:roleRef roleURI="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesTables" xlink:type="simple" xlink:href="ctrp-20131231.xsd#DisclosurePrincipalAccountingPoliciesTables" />
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureFairValueMeasurementDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems to loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:title="FairValueByMeasurementFrequencyAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain" xlink:title="FairValueMeasurementFrequencyDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain" xlink:title="Definition : loc_us-gaap_FairValueByMeasurementFrequencyAxis to loc_us-gaap_FairValueMeasurementFrequencyDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:title="FairValueByFairValueHierarchyLevelAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:title="FairValueMeasurementsFairValueHierarchyDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:title="Definition : loc_us-gaap_FairValueByFairValueHierarchyLevelAxis to loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="loc_us-gaap_InvestmentTypeAxis" xlink:title="InvestmentTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember" xlink:title="InvestmentTypeCategorizationMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember" xlink:title="Definition : loc_us-gaap_InvestmentTypeAxis to loc_us-gaap_InvestmentTypeCategorizationMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerAxis" xlink:label="loc_invest_InvestmentIssuerAxis" xlink:title="InvestmentIssuerAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="loc_invest_InvestmentIssuerDomain" xlink:title="InvestmentIssuerDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_invest_InvestmentIssuerAxis" xlink:to="loc_invest_InvestmentIssuerDomain" xlink:title="Definition : loc_invest_InvestmentIssuerAxis to loc_invest_InvestmentIssuerDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember" xlink:title="FairValueMeasurementsRecurringMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember" xlink:title="Definition : loc_us-gaap_FairValueMeasurementFrequencyDomain to loc_us-gaap_FairValueMeasurementsRecurringMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member" xlink:title="FairValueInputsLevel1Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="loc_us-gaap_FairValueInputsLevel1Member" xlink:title="Definition : loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain to loc_us-gaap_FairValueInputsLevel1Member" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BankTimeDepositsMember" xlink:label="loc_us-gaap_BankTimeDepositsMember" xlink:title="BankTimeDepositsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember" xlink:to="loc_us-gaap_BankTimeDepositsMember" xlink:title="Definition : loc_us-gaap_InvestmentTypeCategorizationMember to loc_us-gaap_BankTimeDepositsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HantingMember" xlink:label="loc_ctrp_HantingMember" xlink:title="HantingMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_HantingMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_HantingMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable to loc_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="FairValueMeasurementFrequencyDomain_1" xlink:title="FairValueMeasurementFrequencyDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:to="FairValueMeasurementFrequencyDomain_1" xlink:title="Definition : loc_us-gaap_FairValueByMeasurementFrequencyAxis to loc_us-gaap_FairValueMeasurementFrequencyDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="FairValueMeasurementsFairValueHierarchyDomain_2" xlink:title="FairValueMeasurementsFairValueHierarchyDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="FairValueMeasurementsFairValueHierarchyDomain_2" xlink:title="Definition : loc_us-gaap_FairValueByFairValueHierarchyLevelAxis to loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="InvestmentTypeCategorizationMember_3" xlink:title="InvestmentTypeCategorizationMember_3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis" xlink:to="InvestmentTypeCategorizationMember_3" xlink:title="Definition : loc_us-gaap_InvestmentTypeAxis to loc_us-gaap_InvestmentTypeCategorizationMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EHiAutoServicesLimitedMember" xlink:label="loc_ctrp_EHiAutoServicesLimitedMember" xlink:title="EHiAutoServicesLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EHiAutoServicesLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EHiAutoServicesLimitedMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShortTermInvestments" xlink:label="loc_us-gaap_ShortTermInvestments" xlink:title="ShortTermInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="loc_us-gaap_ShortTermInvestments" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems to loc_us-gaap_ShortTermInvestments" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_FinancialProductsOtherThanBankTimeDepositsMember" xlink:label="loc_ctrp_FinancialProductsOtherThanBankTimeDepositsMember" xlink:title="FinancialProductsOtherThanBankTimeDepositsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember" xlink:to="loc_ctrp_FinancialProductsOtherThanBankTimeDepositsMember" xlink:title="Definition : loc_us-gaap_InvestmentTypeCategorizationMember to loc_ctrp_FinancialProductsOtherThanBankTimeDepositsMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member" xlink:title="FairValueInputsLevel2Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="loc_us-gaap_FairValueInputsLevel2Member" xlink:title="Definition : loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain to loc_us-gaap_FairValueInputsLevel2Member" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable to loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member" xlink:title="FairValueInputsLevel3Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="loc_us-gaap_FairValueInputsLevel3Member" xlink:title="Definition : loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain to loc_us-gaap_FairValueInputsLevel3Member" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EasyGoIncMember" xlink:label="loc_ctrp_EasyGoIncMember" xlink:title="EasyGoIncMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EasyGoIncMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EasyGoIncMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecurities" xlink:title="AvailableForSaleSecurities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="loc_us-gaap_AvailableForSaleSecurities" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems to loc_us-gaap_AvailableForSaleSecurities" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="loc_us-gaap_InvestmentTypeAxis" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable to loc_us-gaap_InvestmentTypeAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DiningSecretaryMember" xlink:label="loc_ctrp_DiningSecretaryMember" xlink:title="DiningSecretaryMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_DiningSecretaryMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_DiningSecretaryMember" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="loc_invest_InvestmentIssuerAxis" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable to loc_invest_InvestmentIssuerAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HappyCityHoldingsLimitedMember" xlink:label="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="HappyCityHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_HappyCityHoldingsLimitedMember" xlink:type="arc" use="optional" order="5" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureInvestmentsDetails3">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:title="ScheduleOfInvestmentsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:title="ScheduleOfInvestmentsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_ScheduleOfInvestmentsTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerAxis" xlink:label="loc_invest_InvestmentIssuerAxis" xlink:title="InvestmentIssuerAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="loc_invest_InvestmentIssuerDomain" xlink:title="InvestmentIssuerDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_invest_InvestmentIssuerAxis" xlink:to="loc_invest_InvestmentIssuerDomain" xlink:title="Definition : loc_invest_InvestmentIssuerAxis to loc_invest_InvestmentIssuerDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EHiAutoServicesLimitedMember" xlink:label="loc_ctrp_EHiAutoServicesLimitedMember" xlink:title="EHiAutoServicesLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EHiAutoServicesLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EHiAutoServicesLimitedMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_invest_InvestmentIssuerAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_invest_InvestmentIssuerAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EasyGoIncMember" xlink:label="loc_ctrp_EasyGoIncMember" xlink:title="EasyGoIncMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EasyGoIncMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EasyGoIncMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="BusinessAcquisitionPercentageOfVotingInterestsAcquired" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DiningSecretaryMember" xlink:label="loc_ctrp_DiningSecretaryMember" xlink:title="DiningSecretaryMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_DiningSecretaryMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_DiningSecretaryMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquireInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments" xlink:title="PaymentsToAcquireInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_PaymentsToAcquireInvestments" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HappyCityHoldingsLimitedMember" xlink:label="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="HappyCityHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_HappyCityHoldingsLimitedMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" xlink:title="OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" xlink:type="arc" use="optional" order="4" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureSubsequentEventsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaap_SubsequentEventLineItems" xlink:title="SubsequentEventLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaap_SubsequentEventTable" xlink:title="SubsequentEventTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems" xlink:to="loc_us-gaap_SubsequentEventTable" xlink:title="Definition : loc_us-gaap_SubsequentEventLineItems to loc_us-gaap_SubsequentEventTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="loc_us-gaap_RelatedPartyDomain" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis to loc_us-gaap_RelatedPartyDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis" xlink:title="SubsequentEventTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain" xlink:title="SubsequentEventTypeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis" xlink:to="loc_us-gaap_SubsequentEventTypeDomain" xlink:title="Definition : loc_us-gaap_SubsequentEventTypeAxis to loc_us-gaap_SubsequentEventTypeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis" xlink:title="BalanceSheetLocationAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain" xlink:title="BalanceSheetLocationDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis" xlink:to="loc_us-gaap_BalanceSheetLocationDomain" xlink:title="Definition : loc_us-gaap_BalanceSheetLocationAxis to loc_us-gaap_BalanceSheetLocationDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="loc_us-gaap_SeriesBPreferredStockMember" xlink:title="SeriesBPreferredStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_us-gaap_SeriesBPreferredStockMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_us-gaap_SeriesBPreferredStockMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HantingMember" xlink:label="loc_ctrp_HantingMember" xlink:title="HantingMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_HantingMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_HantingMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ToursforfunMember" xlink:label="loc_ctrp_ToursforfunMember" xlink:title="ToursforfunMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_ToursforfunMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_ToursforfunMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember" xlink:title="SubsequentEventMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain" xlink:to="loc_us-gaap_SubsequentEventMember" xlink:title="Definition : loc_us-gaap_SubsequentEventTypeDomain to loc_us-gaap_SubsequentEventMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PrepaymentsAndOtherCurrentAssetsMember" xlink:label="loc_ctrp_PrepaymentsAndOtherCurrentAssetsMember" xlink:title="PrepaymentsAndOtherCurrentAssetsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain" xlink:to="loc_ctrp_PrepaymentsAndOtherCurrentAssetsMember" xlink:title="Definition : loc_us-gaap_BalanceSheetLocationDomain to loc_ctrp_PrepaymentsAndOtherCurrentAssetsMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable" xlink:to="loc_us-gaap_SubsequentEventTypeAxis" xlink:title="Definition : loc_us-gaap_SubsequentEventTable to loc_us-gaap_SubsequentEventTypeAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="SubsequentEventTypeDomain_1" xlink:title="SubsequentEventTypeDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis" xlink:to="SubsequentEventTypeDomain_1" xlink:title="Definition : loc_us-gaap_SubsequentEventTypeAxis to loc_us-gaap_SubsequentEventTypeDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="BalanceSheetLocationDomain_2" xlink:title="BalanceSheetLocationDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis" xlink:to="BalanceSheetLocationDomain_2" xlink:title="Definition : loc_us-gaap_BalanceSheetLocationAxis to loc_us-gaap_BalanceSheetLocationDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LoansAndLeasesReceivableRelatedParties" xlink:label="loc_us-gaap_LoansAndLeasesReceivableRelatedParties" xlink:title="LoansAndLeasesReceivableRelatedParties" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems" xlink:to="loc_us-gaap_LoansAndLeasesReceivableRelatedParties" xlink:title="Definition : loc_us-gaap_SubsequentEventLineItems to loc_us-gaap_LoansAndLeasesReceivableRelatedParties" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="Definition : loc_us-gaap_SubsequentEventTable to loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LoansReceivableMaturityTerm" xlink:label="loc_ctrp_LoansReceivableMaturityTerm" xlink:title="LoansReceivableMaturityTerm" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems" xlink:to="loc_ctrp_LoansReceivableMaturityTerm" xlink:title="Definition : loc_us-gaap_SubsequentEventLineItems to loc_ctrp_LoansReceivableMaturityTerm" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_SubsequentEventTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1" xlink:title="BusinessCombinationConsiderationTransferred1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1" xlink:title="Definition : loc_us-gaap_SubsequentEventLineItems to loc_us-gaap_BusinessCombinationConsiderationTransferred1" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable" xlink:to="loc_us-gaap_BalanceSheetLocationAxis" xlink:title="Definition : loc_us-gaap_SubsequentEventTable to loc_us-gaap_BalanceSheetLocationAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PrepaymentsForBusinessAcquisition" xlink:label="loc_ctrp_PrepaymentsForBusinessAcquisition" xlink:title="PrepaymentsForBusinessAcquisition" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems" xlink:to="loc_ctrp_PrepaymentsForBusinessAcquisition" xlink:title="Definition : loc_us-gaap_SubsequentEventLineItems to loc_ctrp_PrepaymentsForBusinessAcquisition" xlink:type="arc" use="optional" order="5" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_SubsequentEventTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LoansReceivableInterestRatePercentage" xlink:label="loc_ctrp_LoansReceivableInterestRatePercentage" xlink:title="LoansReceivableInterestRatePercentage" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems" xlink:to="loc_ctrp_LoansReceivableInterestRatePercentage" xlink:title="Definition : loc_us-gaap_SubsequentEventLineItems to loc_ctrp_LoansReceivableInterestRatePercentage" xlink:type="arc" use="optional" order="8000" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureLongTermLoanReceivableDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:title="AccountsNotesAndLoansReceivableLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:title="ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:title="Definition : loc_us-gaap_AccountsNotesAndLoansReceivableLineItems to loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis" xlink:title="LegalEntityAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain" xlink:title="EntityDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis" xlink:to="loc_dei_EntityDomain" xlink:title="Definition : loc_dei_LegalEntityAxis to loc_dei_EntityDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerAxis" xlink:label="loc_invest_InvestmentIssuerAxis" xlink:title="InvestmentIssuerAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="loc_invest_InvestmentIssuerDomain" xlink:title="InvestmentIssuerDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_invest_InvestmentIssuerAxis" xlink:to="loc_invest_InvestmentIssuerDomain" xlink:title="Definition : loc_invest_InvestmentIssuerAxis to loc_invest_InvestmentIssuerDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_FelicityInvestmentHoldingsLimitedMember" xlink:label="loc_ctrp_FelicityInvestmentHoldingsLimitedMember" xlink:title="FelicityInvestmentHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_FelicityInvestmentHoldingsLimitedMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_FelicityInvestmentHoldingsLimitedMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:label="loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:title="KeystoneLodgingHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:to="loc_dei_LegalEntityAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable to loc_dei_LegalEntityAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NotesAndLoansReceivableNetNoncurrent" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetNoncurrent" xlink:title="NotesAndLoansReceivableNetNoncurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetNoncurrent" xlink:title="Definition : loc_us-gaap_AccountsNotesAndLoansReceivableLineItems to loc_us-gaap_NotesAndLoansReceivableNetNoncurrent" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:to="loc_invest_InvestmentIssuerAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable to loc_invest_InvestmentIssuerAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LoansReceivableMaturityTerm" xlink:label="loc_ctrp_LoansReceivableMaturityTerm" xlink:title="LoansReceivableMaturityTerm" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:to="loc_ctrp_LoansReceivableMaturityTerm" xlink:title="Definition : loc_us-gaap_AccountsNotesAndLoansReceivableLineItems to loc_ctrp_LoansReceivableMaturityTerm" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:label="loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:title="BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:to="loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:title="Definition : loc_us-gaap_AccountsNotesAndLoansReceivableLineItems to loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:type="arc" use="optional" order="8000" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureShortTermBorrowingsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShortTermDebtLineItems" xlink:label="loc_us-gaap_ShortTermDebtLineItems" xlink:title="ShortTermDebtLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfShortTermDebtTable" xlink:label="loc_us-gaap_ScheduleOfShortTermDebtTable" xlink:title="ScheduleOfShortTermDebtTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShortTermDebtLineItems" xlink:to="loc_us-gaap_ScheduleOfShortTermDebtTable" xlink:title="Definition : loc_us-gaap_ShortTermDebtLineItems to loc_us-gaap_ScheduleOfShortTermDebtTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LineOfCreditFacilityAxis" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis" xlink:title="LineOfCreditFacilityAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain" xlink:title="LineOfCreditFacilityLenderDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain" xlink:title="Definition : loc_us-gaap_LineOfCreditFacilityAxis to loc_us-gaap_LineOfCreditFacilityLenderDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis" xlink:to="loc_us-gaap_DebtInstrumentNameDomain" xlink:title="Definition : loc_us-gaap_DebtInstrumentAxis to loc_us-gaap_DebtInstrumentNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ChinaConstructionBankMember" xlink:label="loc_ctrp_ChinaConstructionBankMember" xlink:title="ChinaConstructionBankMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain" xlink:to="loc_ctrp_ChinaConstructionBankMember" xlink:title="Definition : loc_us-gaap_LineOfCreditFacilityLenderDomain to loc_ctrp_ChinaConstructionBankMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LoanFacilityOneMember" xlink:label="loc_ctrp_LoanFacilityOneMember" xlink:title="LoanFacilityOneMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain" xlink:to="loc_ctrp_LoanFacilityOneMember" xlink:title="Definition : loc_us-gaap_DebtInstrumentNameDomain to loc_ctrp_LoanFacilityOneMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShortTermDebtTable to loc_us-gaap_LineOfCreditFacilityAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="LineOfCreditFacilityLenderDomain_1" xlink:title="LineOfCreditFacilityLenderDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis" xlink:to="LineOfCreditFacilityLenderDomain_1" xlink:title="Definition : loc_us-gaap_LineOfCreditFacilityAxis to loc_us-gaap_LineOfCreditFacilityLenderDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain_2" xlink:title="DebtInstrumentNameDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain_2" xlink:title="Definition : loc_us-gaap_DebtInstrumentAxis to loc_us-gaap_DebtInstrumentNameDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AgriculturalBankOfChinaMember" xlink:label="loc_ctrp_AgriculturalBankOfChinaMember" xlink:title="AgriculturalBankOfChinaMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain" xlink:to="loc_ctrp_AgriculturalBankOfChinaMember" xlink:title="Definition : loc_us-gaap_LineOfCreditFacilityLenderDomain to loc_ctrp_AgriculturalBankOfChinaMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LoanFacilityTwoMember" xlink:label="loc_ctrp_LoanFacilityTwoMember" xlink:title="LoanFacilityTwoMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain" xlink:to="loc_ctrp_LoanFacilityTwoMember" xlink:title="Definition : loc_us-gaap_DebtInstrumentNameDomain to loc_ctrp_LoanFacilityTwoMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:title="LineOfCreditFacilityMaximumBorrowingCapacity" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:title="Definition : loc_us-gaap_ShortTermDebtLineItems to loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable" xlink:to="loc_us-gaap_DebtInstrumentAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShortTermDebtTable to loc_us-gaap_DebtInstrumentAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LineOfCreditFacilityExtendedMaturityTerm" xlink:label="loc_ctrp_LineOfCreditFacilityExtendedMaturityTerm" xlink:title="LineOfCreditFacilityExtendedMaturityTerm" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems" xlink:to="loc_ctrp_LineOfCreditFacilityExtendedMaturityTerm" xlink:title="Definition : loc_us-gaap_ShortTermDebtLineItems to loc_ctrp_LineOfCreditFacilityExtendedMaturityTerm" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShortTermDebtTypeAxis" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis" xlink:title="ShortTermDebtTypeAxis" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShortTermDebtTable to loc_us-gaap_ShortTermDebtTypeAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LineOfCreditFacilityMaturityTerm" xlink:label="loc_ctrp_LineOfCreditFacilityMaturityTerm" xlink:title="LineOfCreditFacilityMaturityTerm" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems" xlink:to="loc_ctrp_LineOfCreditFacilityMaturityTerm" xlink:title="Definition : loc_us-gaap_ShortTermDebtLineItems to loc_ctrp_LineOfCreditFacilityMaturityTerm" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LineOfCreditFacilityCollateralAmount" xlink:label="loc_ctrp_LineOfCreditFacilityCollateralAmount" xlink:title="LineOfCreditFacilityCollateralAmount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems" xlink:to="loc_ctrp_LineOfCreditFacilityCollateralAmount" xlink:title="Definition : loc_us-gaap_ShortTermDebtLineItems to loc_ctrp_LineOfCreditFacilityCollateralAmount" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LineOfCreditFacilityCollateralNumberOfSubsidiaries" xlink:label="loc_ctrp_LineOfCreditFacilityCollateralNumberOfSubsidiaries" xlink:title="LineOfCreditFacilityCollateralNumberOfSubsidiaries" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems" xlink:to="loc_ctrp_LineOfCreditFacilityCollateralNumberOfSubsidiaries" xlink:title="Definition : loc_us-gaap_ShortTermDebtLineItems to loc_ctrp_LineOfCreditFacilityCollateralNumberOfSubsidiaries" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShortTermBorrowings" xlink:label="loc_us-gaap_ShortTermBorrowings" xlink:title="ShortTermBorrowings" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems" xlink:to="loc_us-gaap_ShortTermBorrowings" xlink:title="Definition : loc_us-gaap_ShortTermDebtLineItems to loc_us-gaap_ShortTermBorrowings" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd" xlink:title="LineOfCreditFacilityInterestRateAtPeriodEnd" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd" xlink:title="Definition : loc_us-gaap_ShortTermDebtLineItems to loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LineOfCreditFacilityNumberOfBorrowings" xlink:label="loc_ctrp_LineOfCreditFacilityNumberOfBorrowings" xlink:title="LineOfCreditFacilityNumberOfBorrowings" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtLineItems" xlink:to="loc_ctrp_LineOfCreditFacilityNumberOfBorrowings" xlink:title="Definition : loc_us-gaap_ShortTermDebtLineItems to loc_ctrp_LineOfCreditFacilityNumberOfBorrowings" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShortTermDebtTypeDomain" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain" xlink:title="ShortTermDebtTypeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain" xlink:title="Definition : loc_us-gaap_ShortTermDebtTypeAxis to loc_us-gaap_ShortTermDebtTypeDomain" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_us-gaap_LineOfCreditMember" xlink:title="LineOfCreditMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain" xlink:to="loc_us-gaap_LineOfCreditMember" xlink:title="Definition : loc_us-gaap_ShortTermDebtTypeDomain to loc_us-gaap_LineOfCreditMember" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShortTermDebtTypeDomain" xlink:label="ShortTermDebtTypeDomain_3" xlink:title="ShortTermDebtTypeDomain_3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis" xlink:to="ShortTermDebtTypeDomain_3" xlink:title="Definition : loc_us-gaap_ShortTermDebtTypeAxis to loc_us-gaap_ShortTermDebtTypeDomain" xlink:type="arc" use="optional" order="8001" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LineOfCreditBorrowingOneMember" xlink:label="loc_ctrp_LineOfCreditBorrowingOneMember" xlink:title="LineOfCreditBorrowingOneMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain" xlink:to="loc_ctrp_LineOfCreditBorrowingOneMember" xlink:title="Definition : loc_us-gaap_ShortTermDebtTypeDomain to loc_ctrp_LineOfCreditBorrowingOneMember" xlink:type="arc" use="optional" order="8001" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LineOfCreditBorrowingTwoMember" xlink:label="loc_ctrp_LineOfCreditBorrowingTwoMember" xlink:title="LineOfCreditBorrowingTwoMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain" xlink:to="loc_ctrp_LineOfCreditBorrowingTwoMember" xlink:title="Definition : loc_us-gaap_ShortTermDebtTypeDomain to loc_ctrp_LineOfCreditBorrowingTwoMember" xlink:type="arc" use="optional" order="8002" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LineOfCreditBorrowingThreeMember" xlink:label="loc_ctrp_LineOfCreditBorrowingThreeMember" xlink:title="LineOfCreditBorrowingThreeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain" xlink:to="loc_ctrp_LineOfCreditBorrowingThreeMember" xlink:title="Definition : loc_us-gaap_ShortTermDebtTypeDomain to loc_ctrp_LineOfCreditBorrowingThreeMember" xlink:type="arc" use="optional" order="8003" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LineOfCreditBorrowingFourMember" xlink:label="loc_ctrp_LineOfCreditBorrowingFourMember" xlink:title="LineOfCreditBorrowingFourMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain" xlink:to="loc_ctrp_LineOfCreditBorrowingFourMember" xlink:title="Definition : loc_us-gaap_ShortTermDebtTypeDomain to loc_ctrp_LineOfCreditBorrowingFourMember" xlink:type="arc" use="optional" order="8004" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureNonControllingInterestsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinorityInterestLineItems" xlink:label="loc_us-gaap_MinorityInterestLineItems" xlink:title="MinorityInterestLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinorityInterestTable" xlink:label="loc_us-gaap_MinorityInterestTable" xlink:title="MinorityInterestTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_MinorityInterestLineItems" xlink:to="loc_us-gaap_MinorityInterestTable" xlink:title="Definition : loc_us-gaap_MinorityInterestLineItems to loc_us-gaap_MinorityInterestTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis" xlink:title="LegalEntityAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain" xlink:title="EntityDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis" xlink:to="loc_dei_EntityDomain" xlink:title="Definition : loc_dei_LegalEntityAxis to loc_dei_EntityDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="loc_us-gaap_SeriesAPreferredStockMember" xlink:title="SeriesAPreferredStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_us-gaap_SeriesAPreferredStockMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_us-gaap_SeriesAPreferredStockMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TujiaMember" xlink:label="loc_ctrp_TujiaMember" xlink:title="TujiaMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_TujiaMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_TujiaMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable" xlink:to="loc_dei_LegalEntityAxis" xlink:title="Definition : loc_us-gaap_MinorityInterestTable to loc_dei_LegalEntityAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="loc_us-gaap_SeriesBPreferredStockMember" xlink:title="SeriesBPreferredStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_us-gaap_SeriesBPreferredStockMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_us-gaap_SeriesBPreferredStockMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EzTravelMember" xlink:label="loc_ctrp_EzTravelMember" xlink:title="EzTravelMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_EzTravelMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_EzTravelMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinorityInterest" xlink:label="loc_us-gaap_MinorityInterest" xlink:title="MinorityInterest" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems" xlink:to="loc_us-gaap_MinorityInterest" xlink:title="Definition : loc_us-gaap_MinorityInterestLineItems to loc_us-gaap_MinorityInterest" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_MinorityInterestTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_OthersEntitiesMember" xlink:label="loc_ctrp_OthersEntitiesMember" xlink:title="OthersEntitiesMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_OthersEntitiesMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_OthersEntitiesMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaap_SharesIssued" xlink:title="SharesIssued" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems" xlink:to="loc_us-gaap_SharesIssued" xlink:title="Definition : loc_us-gaap_MinorityInterestLineItems to loc_us-gaap_SharesIssued" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:title="ProceedsFromIssuanceOfConvertiblePreferredStock" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:title="Definition : loc_us-gaap_MinorityInterestLineItems to loc_us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:type="arc" use="optional" order="4" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails17">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems" xlink:title="BusinessAcquisitionLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="ScheduleOfBusinessAcquisitionsByAcquisitionTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WingOnTravelMember" xlink:label="loc_ctrp_WingOnTravelMember" xlink:title="WingOnTravelMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_WingOnTravelMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_WingOnTravelMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsRestrictedCash" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsRestrictedCash" xlink:title="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsRestrictedCash" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsRestrictedCash" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsRestrictedCash" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsDueFromAffiliate" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsDueFromAffiliate" xlink:title="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsDueFromAffiliate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsDueFromAffiliate" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsDueFromAffiliate" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivablesDueFromRelatedParties" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivablesDueFromRelatedParties" xlink:title="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivablesDueFromRelatedParties" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivablesDueFromRelatedParties" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivablesDueFromRelatedParties" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsPrepaymentsAndOtherCurrentAssets" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsPrepaymentsAndOtherCurrentAssets" xlink:title="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsPrepaymentsAndOtherCurrentAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsPrepaymentsAndOtherCurrentAssets" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsPrepaymentsAndOtherCurrentAssets" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationLongtermDeposits" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationLongtermDeposits" xlink:title="BusinessAcquisitionPurchasePriceAllocationLongtermDeposits" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationLongtermDeposits" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationLongtermDeposits" xlink:type="arc" use="optional" order="11" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationInvestmentInAffiliate" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationInvestmentInAffiliate" xlink:title="BusinessAcquisitionPurchasePriceAllocationInvestmentInAffiliate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationInvestmentInAffiliate" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationInvestmentInAffiliate" xlink:type="arc" use="optional" order="12" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets" xlink:type="arc" use="optional" order="13" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:type="arc" use="optional" order="14" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationDueToRelatedParties" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationDueToRelatedParties" xlink:title="BusinessAcquisitionPurchasePriceAllocationDueToRelatedParties" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationDueToRelatedParties" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationDueToRelatedParties" xlink:type="arc" use="optional" order="15" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationSalaryAndWelfarePayable" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationSalaryAndWelfarePayable" xlink:title="BusinessAcquisitionPurchasePriceAllocationSalaryAndWelfarePayable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationSalaryAndWelfarePayable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationSalaryAndWelfarePayable" xlink:type="arc" use="optional" order="16" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationTaxesPayable" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationTaxesPayable" xlink:title="BusinessAcquisitionPurchasePriceAllocationTaxesPayable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationTaxesPayable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationTaxesPayable" xlink:type="arc" use="optional" order="17" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationAdvancesFromCustomers" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationAdvancesFromCustomers" xlink:title="BusinessAcquisitionPurchasePriceAllocationAdvancesFromCustomers" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationAdvancesFromCustomers" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationAdvancesFromCustomers" xlink:type="arc" use="optional" order="18" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:type="arc" use="optional" order="19" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationOtherLongtermPayables" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationOtherLongtermPayables" xlink:title="BusinessAcquisitionPurchasePriceAllocationOtherLongtermPayables" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationOtherLongtermPayables" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationOtherLongtermPayables" xlink:type="arc" use="optional" order="21" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:type="arc" use="optional" order="22" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" xlink:type="arc" use="optional" order="23" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:type="arc" use="optional" order="24" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue" xlink:title="BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue" xlink:type="arc" use="optional" order="26" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PercentageOfNoncontrollingInterestDiscount" xlink:label="loc_ctrp_PercentageOfNoncontrollingInterestDiscount" xlink:title="PercentageOfNoncontrollingInterestDiscount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_PercentageOfNoncontrollingInterestDiscount" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_PercentageOfNoncontrollingInterestDiscount" xlink:type="arc" use="optional" order="29" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails18">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems" xlink:title="BusinessAcquisitionLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="ScheduleOfBusinessAcquisitionsByAcquisitionTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="FiniteLivedIntangibleAssetsByMajorClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="FiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="IndefiniteLivedIntangibleAssetsByMajorClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="IndefiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WingOnTravelMember" xlink:label="loc_ctrp_WingOnTravelMember" xlink:title="WingOnTravelMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_WingOnTravelMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_WingOnTravelMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CustomerListsMember" xlink:label="loc_us-gaap_CustomerListsMember" xlink:title="CustomerListsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_CustomerListsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_CustomerListsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TrademarksMember" xlink:label="loc_us-gaap_TrademarksMember" xlink:title="TrademarksMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_TrademarksMember" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_TrademarksMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RegisteredUsersOnWebsite" xlink:label="loc_ctrp_RegisteredUsersOnWebsite" xlink:title="RegisteredUsersOnWebsite" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_RegisteredUsersOnWebsite" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_RegisteredUsersOnWebsite" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PeriodOfRecognizedBrandingHistory" xlink:label="loc_ctrp_PeriodOfRecognizedBrandingHistory" xlink:title="PeriodOfRecognizedBrandingHistory" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_PeriodOfRecognizedBrandingHistory" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_PeriodOfRecognizedBrandingHistory" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PeriodOfTravelAwards" xlink:label="loc_ctrp_PeriodOfTravelAwards" xlink:title="PeriodOfTravelAwards" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_PeriodOfTravelAwards" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_PeriodOfTravelAwards" xlink:type="arc" use="optional" order="8000" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails19">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems" xlink:title="BusinessAcquisitionLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="ScheduleOfBusinessAcquisitionsByAcquisitionTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EzTravelMember" xlink:label="loc_ctrp_EzTravelMember" xlink:title="EzTravelMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_EzTravelMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_EzTravelMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsRestrictedCash" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsRestrictedCash" xlink:title="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsRestrictedCash" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsRestrictedCash" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsRestrictedCash" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsShorttermInvestment" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsShorttermInvestment" xlink:title="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsShorttermInvestment" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsShorttermInvestment" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsShorttermInvestment" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationDeferredTaxAssetsCurrent" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationDeferredTaxAssetsCurrent" xlink:title="BusinessAcquisitionPurchasePriceAllocationDeferredTaxAssetsCurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationDeferredTaxAssetsCurrent" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationDeferredTaxAssetsCurrent" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationLongtermDeposits" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationLongtermDeposits" xlink:title="BusinessAcquisitionPurchasePriceAllocationLongtermDeposits" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationLongtermDeposits" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationLongtermDeposits" xlink:type="arc" use="optional" order="11" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationOtherLongtermAssets" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationOtherLongtermAssets" xlink:title="BusinessAcquisitionPurchasePriceAllocationOtherLongtermAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationOtherLongtermAssets" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationOtherLongtermAssets" xlink:type="arc" use="optional" order="12" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets" xlink:type="arc" use="optional" order="13" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:type="arc" use="optional" order="14" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationSalaryAndWelfarePayable" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationSalaryAndWelfarePayable" xlink:title="BusinessAcquisitionPurchasePriceAllocationSalaryAndWelfarePayable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationSalaryAndWelfarePayable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationSalaryAndWelfarePayable" xlink:type="arc" use="optional" order="15" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationTaxesPayable" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationTaxesPayable" xlink:title="BusinessAcquisitionPurchasePriceAllocationTaxesPayable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationTaxesPayable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationTaxesPayable" xlink:type="arc" use="optional" order="16" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationAdvancesFromCustomers" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationAdvancesFromCustomers" xlink:title="BusinessAcquisitionPurchasePriceAllocationAdvancesFromCustomers" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationAdvancesFromCustomers" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationAdvancesFromCustomers" xlink:type="arc" use="optional" order="17" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:type="arc" use="optional" order="18" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities" xlink:type="arc" use="optional" order="19" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities" xlink:type="arc" use="optional" order="21" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:type="arc" use="optional" order="22" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue" xlink:title="BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue" xlink:type="arc" use="optional" order="24" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails20">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems" xlink:title="BusinessAcquisitionLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="ScheduleOfBusinessAcquisitionsByAcquisitionTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="FiniteLivedIntangibleAssetsByMajorClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="FiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="IndefiniteLivedIntangibleAssetsByMajorClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="IndefiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EzTravelMember" xlink:label="loc_ctrp_EzTravelMember" xlink:title="EzTravelMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_EzTravelMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_EzTravelMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CustomerListsMember" xlink:label="loc_us-gaap_CustomerListsMember" xlink:title="CustomerListsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_CustomerListsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_CustomerListsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TrademarksMember" xlink:label="loc_us-gaap_TrademarksMember" xlink:title="TrademarksMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_TrademarksMember" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_TrademarksMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RegisteredUsersOnWebsite" xlink:label="loc_ctrp_RegisteredUsersOnWebsite" xlink:title="RegisteredUsersOnWebsite" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_RegisteredUsersOnWebsite" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_RegisteredUsersOnWebsite" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RegisteredTrademarkRenewalPeriod" xlink:label="loc_ctrp_RegisteredTrademarkRenewalPeriod" xlink:title="RegisteredTrademarkRenewalPeriod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_RegisteredTrademarkRenewalPeriod" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_RegisteredTrademarkRenewalPeriod" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DomainNameUpdatePeriod" xlink:label="loc_ctrp_DomainNameUpdatePeriod" xlink:title="DomainNameUpdatePeriod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_DomainNameUpdatePeriod" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_DomainNameUpdatePeriod" xlink:type="arc" use="optional" order="6" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails22">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems" xlink:title="BusinessAcquisitionLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="ScheduleOfBusinessAcquisitionsByAcquisitionTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_SoftwareHotelInformationMember" xlink:label="loc_ctrp_SoftwareHotelInformationMember" xlink:title="SoftwareHotelInformationMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_SoftwareHotelInformationMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_SoftwareHotelInformationMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NumberOfReportingUnits" xlink:label="loc_ctrp_NumberOfReportingUnits" xlink:title="NumberOfReportingUnits" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_NumberOfReportingUnits" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_NumberOfReportingUnits" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount" xlink:label="loc_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount" xlink:title="BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount" xlink:type="arc" use="optional" order="4" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails6">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems" xlink:title="BusinessAcquisitionLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="ScheduleOfBusinessAcquisitionsByAcquisitionTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WingOnTravelMember" xlink:label="loc_ctrp_WingOnTravelMember" xlink:title="WingOnTravelMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_WingOnTravelMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_WingOnTravelMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_B2BHotelReservationCompanyMember" xlink:label="loc_ctrp_B2BHotelReservationCompanyMember" xlink:title="B2BHotelReservationCompanyMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_B2BHotelReservationCompanyMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_B2BHotelReservationCompanyMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="BusinessAcquisitionPercentageOfVotingInterestsAcquired" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WholesalerOperatedHotelReservationAndAirTicketingServicesMember" xlink:label="loc_ctrp_WholesalerOperatedHotelReservationAndAirTicketingServicesMember" xlink:title="WholesalerOperatedHotelReservationAndAirTicketingServicesMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_WholesalerOperatedHotelReservationAndAirTicketingServicesMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_WholesalerOperatedHotelReservationAndAirTicketingServicesMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions" xlink:label="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions" xlink:title="SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1" xlink:title="BusinessCombinationConsiderationTransferred1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_BusinessCombinationConsiderationTransferred1" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross" xlink:title="PaymentsToAcquireBusinessesGross" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_PaymentsToAcquireBusinessesGross" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionDifferenceBetweenNoncontrollingInterestAcquiredAndCashConsiderationPaidRecordedInAdditionalPaidInCapital" xlink:label="loc_ctrp_BusinessAcquisitionDifferenceBetweenNoncontrollingInterestAcquiredAndCashConsiderationPaidRecordedInAdditionalPaidInCapital" xlink:title="BusinessAcquisitionDifferenceBetweenNoncontrollingInterestAcquiredAndCashConsiderationPaidRecordedInAdditionalPaidInCapital" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_ctrp_BusinessAcquisitionDifferenceBetweenNoncontrollingInterestAcquiredAndCashConsiderationPaidRecordedInAdditionalPaidInCapital" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_ctrp_BusinessAcquisitionDifferenceBetweenNoncontrollingInterestAcquiredAndCashConsiderationPaidRecordedInAdditionalPaidInCapital" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill" xlink:title="Goodwill" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_Goodwill" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_Goodwill" xlink:type="arc" use="optional" order="7" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureInvestmentsDetails4">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:title="ScheduleOfEquityMethodInvestmentsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:title="ScheduleOfEquityMethodInvestmentsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:title="EquityMethodInvesteeNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis to loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquiredByEquityMethodInvesteeMember" xlink:label="loc_ctrp_BusinessAcquiredByEquityMethodInvesteeMember" xlink:title="BusinessAcquiredByEquityMethodInvesteeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_BusinessAcquiredByEquityMethodInvesteeMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_BusinessAcquiredByEquityMethodInvesteeMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EquityMethodInvestmentHomeInnsMember" xlink:label="loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:title="EquityMethodInvestmentHomeInnsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:to="loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:title="Definition : loc_us-gaap_EquityMethodInvesteeNameDomain to loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable to loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="EquityMethodInvesteeNameDomain_1" xlink:title="EquityMethodInvesteeNameDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="EquityMethodInvesteeNameDomain_1" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis to loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:title="EquityMethodInvestmentOwnershipPercentage" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EquityMethodInvestmentOwnershipShares" xlink:label="loc_ctrp_EquityMethodInvestmentOwnershipShares" xlink:title="EquityMethodInvestmentOwnershipShares" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_ctrp_EquityMethodInvestmentOwnershipShares" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_ctrp_EquityMethodInvestmentOwnershipShares" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="BusinessAcquisitionPercentageOfVotingInterestsAcquired" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain" xlink:label="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain" xlink:title="BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain" xlink:type="arc" use="optional" order="5" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails3">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems" xlink:title="StatementLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable" xlink:title="StatementTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_StatementTable" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_StatementTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember" xlink:title="RangeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis" xlink:to="loc_us-gaap_RangeMember" xlink:title="Definition : loc_us-gaap_RangeAxis to loc_us-gaap_RangeMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="FiniteLivedIntangibleAssetsByMajorClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="FiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember" xlink:title="MinimumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MinimumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MinimumMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UseRightsMember" xlink:label="loc_us-gaap_UseRightsMember" xlink:title="UseRightsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_UseRightsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_UseRightsMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="Definition : loc_us-gaap_StatementTable to loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="RangeMember_1" xlink:title="RangeMember_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis" xlink:to="RangeMember_1" xlink:title="Definition : loc_us-gaap_RangeAxis to loc_us-gaap_RangeMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="FiniteLivedIntangibleAssetsMajorClassNameDomain_2" xlink:title="FiniteLivedIntangibleAssetsMajorClassNameDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="FiniteLivedIntangibleAssetsMajorClassNameDomain_2" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember" xlink:title="MaximumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MaximumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MaximumMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:title="FiniteLivedIntangibleAssetUsefulLife" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable" xlink:to="loc_us-gaap_RangeAxis" xlink:title="Definition : loc_us-gaap_StatementTable to loc_us-gaap_RangeAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_StatementTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdsMember" xlink:label="loc_ctrp_AdsMember" xlink:title="AdsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_ctrp_AdsMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_ctrp_AdsMember" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:title="StockholdersEquityNoteStockSplitConversionRatio1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="ClassOfStockDomain_3" xlink:title="ClassOfStockDomain_3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="ClassOfStockDomain_3" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="8001" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureIntangibleAssetsDetails">
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_IntangibleAssetsNetLineItems" xlink:label="loc_ctrp_IntangibleAssetsNetLineItems" xlink:title="IntangibleAssetsNetLineItems" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ScheduleOfIntangibleAssetsTable" xlink:label="loc_ctrp_ScheduleOfIntangibleAssetsTable" xlink:title="ScheduleOfIntangibleAssetsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ctrp_IntangibleAssetsNetLineItems" xlink:to="loc_ctrp_ScheduleOfIntangibleAssetsTable" xlink:title="Definition : loc_ctrp_IntangibleAssetsNetLineItems to loc_ctrp_ScheduleOfIntangibleAssetsTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="FiniteLivedIntangibleAssetsByMajorClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="FiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="IndefiniteLivedIntangibleAssetsByMajorClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="IndefiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NoncompeteAgreementsMember" xlink:label="loc_us-gaap_NoncompeteAgreementsMember" xlink:title="NoncompeteAgreementsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_NoncompeteAgreementsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_NoncompeteAgreementsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TrademarksMember" xlink:label="loc_us-gaap_TrademarksMember" xlink:title="TrademarksMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_TrademarksMember" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_TrademarksMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ctrp_ScheduleOfIntangibleAssetsTable" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="Definition : loc_ctrp_ScheduleOfIntangibleAssetsTable to loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="IndefiniteLivedIntangibleAssetsMajorClassNameDomain_1" xlink:title="IndefiniteLivedIntangibleAssetsMajorClassNameDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="IndefiniteLivedIntangibleAssetsMajorClassNameDomain_1" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CustomerListsMember" xlink:label="loc_us-gaap_CustomerListsMember" xlink:title="CustomerListsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_CustomerListsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_CustomerListsMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ContractualRightsMember" xlink:label="loc_us-gaap_ContractualRightsMember" xlink:title="ContractualRightsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_ContractualRightsMember" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_ContractualRightsMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross" xlink:title="FiniteLivedIntangibleAssetsGross" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_IntangibleAssetsNetLineItems" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross" xlink:title="Definition : loc_ctrp_IntangibleAssetsNetLineItems to loc_us-gaap_FiniteLivedIntangibleAssetsGross" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ctrp_ScheduleOfIntangibleAssetsTable" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="Definition : loc_ctrp_ScheduleOfIntangibleAssetsTable to loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_SupplierRelationshipMember" xlink:label="loc_ctrp_SupplierRelationshipMember" xlink:title="SupplierRelationshipMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_ctrp_SupplierRelationshipMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_ctrp_SupplierRelationshipMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UnclassifiedIndefinitelivedIntangibleAssetsMember" xlink:label="loc_us-gaap_UnclassifiedIndefinitelivedIntangibleAssetsMember" xlink:title="UnclassifiedIndefinitelivedIntangibleAssetsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_UnclassifiedIndefinitelivedIntangibleAssetsMember" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_UnclassifiedIndefinitelivedIntangibleAssetsMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_IndefiniteLivedIntangibleAssetsExcludingGoodwillAtCost" xlink:label="loc_ctrp_IndefiniteLivedIntangibleAssetsExcludingGoodwillAtCost" xlink:title="IndefiniteLivedIntangibleAssetsExcludingGoodwillAtCost" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_IntangibleAssetsNetLineItems" xlink:to="loc_ctrp_IndefiniteLivedIntangibleAssetsExcludingGoodwillAtCost" xlink:title="Definition : loc_ctrp_IntangibleAssetsNetLineItems to loc_ctrp_IndefiniteLivedIntangibleAssetsExcludingGoodwillAtCost" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PatentedTechnologyMember" xlink:label="loc_us-gaap_PatentedTechnologyMember" xlink:title="PatentedTechnologyMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_PatentedTechnologyMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_PatentedTechnologyMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:title="IndefiniteLivedIntangibleAssetsExcludingGoodwill" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_IntangibleAssetsNetLineItems" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:title="Definition : loc_ctrp_IntangibleAssetsNetLineItems to loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LicensingAgreementsMember" xlink:label="loc_us-gaap_LicensingAgreementsMember" xlink:title="LicensingAgreementsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_LicensingAgreementsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_LicensingAgreementsMember" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_IntangibleAssetsGross" xlink:label="loc_ctrp_IntangibleAssetsGross" xlink:title="IntangibleAssetsGross" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_IntangibleAssetsNetLineItems" xlink:to="loc_ctrp_IntangibleAssetsGross" xlink:title="Definition : loc_ctrp_IntangibleAssetsNetLineItems to loc_ctrp_IntangibleAssetsGross" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherIntangibleAssetsMember" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember" xlink:title="OtherIntangibleAssetsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_OtherIntangibleAssetsMember" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:title="FiniteLivedIntangibleAssetsAccumulatedAmortization" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_IntangibleAssetsNetLineItems" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:title="Definition : loc_ctrp_IntangibleAssetsNetLineItems to loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet" xlink:title="FiniteLivedIntangibleAssetsNet" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_IntangibleAssetsNetLineItems" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet" xlink:title="Definition : loc_ctrp_IntangibleAssetsNetLineItems to loc_us-gaap_FiniteLivedIntangibleAssetsNet" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:title="IntangibleAssetsNetExcludingGoodwill" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_IntangibleAssetsNetLineItems" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:title="Definition : loc_ctrp_IntangibleAssetsNetLineItems to loc_us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:type="arc" use="optional" order="8" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureLandUseRightsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:title="FiniteLivedIntangibleAssetsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:title="ScheduleOfFiniteLivedIntangibleAssetsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsLineItems to loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="FiniteLivedIntangibleAssetsByMajorClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="FiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis" xlink:title="StatementGeographicalAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain" xlink:title="SegmentGeographicalDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis" xlink:to="loc_us-gaap_SegmentGeographicalDomain" xlink:title="Definition : loc_us-gaap_StatementGeographicalAxis to loc_us-gaap_SegmentGeographicalDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UseRightsMember" xlink:label="loc_us-gaap_UseRightsMember" xlink:title="UseRightsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_UseRightsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_UseRightsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShanghaiMember" xlink:label="loc_ctrp_ShanghaiMember" xlink:title="ShanghaiMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain" xlink:to="loc_ctrp_ShanghaiMember" xlink:title="Definition : loc_us-gaap_SegmentGeographicalDomain to loc_ctrp_ShanghaiMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable to loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NantongMember" xlink:label="loc_ctrp_NantongMember" xlink:title="NantongMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain" xlink:to="loc_ctrp_NantongMember" xlink:title="Definition : loc_us-gaap_SegmentGeographicalDomain to loc_ctrp_NantongMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NumberOfLandUseRights" xlink:label="loc_ctrp_NumberOfLandUseRights" xlink:title="NumberOfLandUseRights" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="loc_ctrp_NumberOfLandUseRights" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsLineItems to loc_ctrp_NumberOfLandUseRights" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:to="loc_us-gaap_StatementGeographicalAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable to loc_us-gaap_StatementGeographicalAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ChengduMember" xlink:label="loc_ctrp_ChengduMember" xlink:title="ChengduMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain" xlink:to="loc_ctrp_ChengduMember" xlink:title="Definition : loc_us-gaap_SegmentGeographicalDomain to loc_ctrp_ChengduMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross" xlink:title="FiniteLivedIntangibleAssetsGross" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsLineItems to loc_us-gaap_FiniteLivedIntangibleAssetsGross" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AreaOfRealEstateProperty" xlink:label="loc_us-gaap_AreaOfRealEstateProperty" xlink:title="AreaOfRealEstateProperty" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="loc_us-gaap_AreaOfRealEstateProperty" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsLineItems to loc_us-gaap_AreaOfRealEstateProperty" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:title="FiniteLivedIntangibleAssetUsefulLife" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsLineItems to loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets" xlink:title="AmortizationOfIntangibleAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsLineItems to loc_us-gaap_AmortizationOfIntangibleAssets" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LandUseRights" xlink:label="loc_ctrp_LandUseRights" xlink:title="LandUseRights" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="loc_ctrp_LandUseRights" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsLineItems to loc_ctrp_LandUseRights" xlink:type="arc" use="optional" order="7" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureInvestmentsDetails5">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:title="ScheduleOfEquityMethodInvestmentsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:title="ScheduleOfEquityMethodInvestmentsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:title="EquityMethodInvesteeNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis to loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EquityMethodInvestmentHomeInnsMember" xlink:label="loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:title="EquityMethodInvestmentHomeInnsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:to="loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:title="Definition : loc_us-gaap_EquityMethodInvesteeNameDomain to loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_InvestmentCostRollForward" xlink:label="loc_ctrp_InvestmentCostRollForward" xlink:title="InvestmentCostRollForward" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentAggregateCost" xlink:label="loc_us-gaap_EquityMethodInvestmentAggregateCost" xlink:title="EquityMethodInvestmentAggregateCost" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_InvestmentCostRollForward" xlink:to="loc_us-gaap_EquityMethodInvestmentAggregateCost" xlink:title="Definition : loc_ctrp_InvestmentCostRollForward to loc_us-gaap_EquityMethodInvestmentAggregateCost" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstract" xlink:label="loc_us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstract" xlink:title="EquityMethodInvestmentFinancialStatementReportedAmountsAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments" xlink:title="IncomeLossFromEquityMethodInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstract" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments" xlink:title="Definition : loc_us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstract to loc_us-gaap_IncomeLossFromEquityMethodInvestments" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable to loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_ctrp_InvestmentCostRollForward" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_ctrp_InvestmentCostRollForward" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdjustmentForLongTermIntercompanyTransactionsNetOfTax" xlink:label="loc_us-gaap_AdjustmentForLongTermIntercompanyTransactionsNetOfTax" xlink:title="AdjustmentForLongTermIntercompanyTransactionsNetOfTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_InvestmentCostRollForward" xlink:to="loc_us-gaap_AdjustmentForLongTermIntercompanyTransactionsNetOfTax" xlink:title="Definition : loc_ctrp_InvestmentCostRollForward to loc_us-gaap_AdjustmentForLongTermIntercompanyTransactionsNetOfTax" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets" xlink:title="AmortizationOfIntangibleAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstract" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets" xlink:title="Definition : loc_us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstract to loc_us-gaap_AmortizationOfIntangibleAssets" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstract" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstract" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentUnrealizedIntercompanyProfitLossNotEliminatedAmount" xlink:label="loc_us-gaap_EquityMethodInvestmentUnrealizedIntercompanyProfitLossNotEliminatedAmount" xlink:title="EquityMethodInvestmentUnrealizedIntercompanyProfitLossNotEliminatedAmount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstract" xlink:to="loc_us-gaap_EquityMethodInvestmentUnrealizedIntercompanyProfitLossNotEliminatedAmount" xlink:title="Definition : loc_us-gaap_EquityMethodInvestmentFinancialStatementReportedAmountsAbstract to loc_us-gaap_EquityMethodInvestmentUnrealizedIntercompanyProfitLossNotEliminatedAmount" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestments" xlink:label="loc_us-gaap_EquityMethodInvestments" xlink:title="EquityMethodInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestments" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestments" xlink:type="arc" use="optional" order="4" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureInvestmentsDetails40">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:title="ScheduleOfEquityMethodInvestmentsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:title="ScheduleOfEquityMethodInvestmentsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:title="EquityMethodInvesteeNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis to loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EquityMethodInvestmentHomeInnsMember" xlink:label="loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:title="EquityMethodInvestmentHomeInnsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:to="loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:title="Definition : loc_us-gaap_EquityMethodInvesteeNameDomain to loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable to loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessAcquisitionPurchasePriceAllocationDeferredIncomeTaxesLiability" xlink:label="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationDeferredIncomeTaxesLiability" xlink:title="BusinessAcquisitionPurchasePriceAllocationDeferredIncomeTaxesLiability" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_ctrp_BusinessAcquisitionPurchasePriceAllocationDeferredIncomeTaxesLiability" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_ctrp_BusinessAcquisitionPurchasePriceAllocationDeferredIncomeTaxesLiability" xlink:type="arc" use="optional" order="8000" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureInvestmentsDetails6">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:title="ScheduleOfEquityMethodInvestmentsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:title="ScheduleOfEquityMethodInvestmentsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:title="EquityMethodInvesteeNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis to loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdsMember" xlink:label="loc_ctrp_AdsMember" xlink:title="AdsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_ctrp_AdsMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_ctrp_AdsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EquityMethodInvestmentHomeInnsMember" xlink:label="loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:title="EquityMethodInvestmentHomeInnsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:to="loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:title="Definition : loc_us-gaap_EquityMethodInvesteeNameDomain to loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable to loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets" xlink:label="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets" xlink:label="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities" xlink:label="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities" xlink:label="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EquityMethodInvestmentSummarizedFinancialInformationRetainEarnings" xlink:label="loc_ctrp_EquityMethodInvestmentSummarizedFinancialInformationRetainEarnings" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationRetainEarnings" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_ctrp_EquityMethodInvestmentSummarizedFinancialInformationRetainEarnings" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_ctrp_EquityMethodInvestmentSummarizedFinancialInformationRetainEarnings" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationMinorityInterest" xlink:label="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationMinorityInterest" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationMinorityInterest" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationMinorityInterest" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationMinorityInterest" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue" xlink:label="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationRevenue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EquityMethodInvestmentSummarizedFinancialInformationRevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:label="loc_ctrp_EquityMethodInvestmentSummarizedFinancialInformationRevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationRevenuesNetOfBusinessTaxAndRelatedSurcharges" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_ctrp_EquityMethodInvestmentSummarizedFinancialInformationRevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_ctrp_EquityMethodInvestmentSummarizedFinancialInformationRevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems" xlink:label="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:label="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:type="arc" use="optional" order="11" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLossAttributableToParent" xlink:label="loc_ctrp_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLossAttributableToParent" xlink:title="EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLossAttributableToParent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_ctrp_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLossAttributableToParent" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_ctrp_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLossAttributableToParent" xlink:type="arc" use="optional" order="12" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharePrice" xlink:label="loc_us-gaap_SharePrice" xlink:title="SharePrice" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_SharePrice" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_SharePrice" xlink:type="arc" use="optional" order="13" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentQuotedMarketValue" xlink:label="loc_us-gaap_EquityMethodInvestmentQuotedMarketValue" xlink:title="EquityMethodInvestmentQuotedMarketValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentQuotedMarketValue" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_EquityMethodInvestmentQuotedMarketValue" xlink:type="arc" use="optional" order="14" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureRelatedPartyTransactionsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:title="RelatedPartyTransactionLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:title="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:title="DisposalGroupsIncludingDiscontinuedOperationsNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:title="Definition : loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis to loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="loc_us-gaap_RelatedPartyDomain" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis to loc_us-gaap_RelatedPartyDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_StarwayHongKongMember" xlink:label="loc_ctrp_StarwayHongKongMember" xlink:title="StarwayHongKongMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:to="loc_ctrp_StarwayHongKongMember" xlink:title="Definition : loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain to loc_ctrp_StarwayHongKongMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HomeInnsMember" xlink:label="loc_ctrp_HomeInnsMember" xlink:title="HomeInnsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_HomeInnsMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_HomeInnsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:label="loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:title="KeystoneLodgingHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="DisposalGroupsIncludingDiscontinuedOperationsNameDomain_1" xlink:title="DisposalGroupsIncludingDiscontinuedOperationsNameDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:to="DisposalGroupsIncludingDiscontinuedOperationsNameDomain_1" xlink:title="Definition : loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis to loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="RelatedPartyDomain_2" xlink:title="RelatedPartyDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="RelatedPartyDomain_2" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis to loc_us-gaap_RelatedPartyDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HantingMember" xlink:label="loc_ctrp_HantingMember" xlink:title="HantingMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_HantingMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_HantingMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty" xlink:label="loc_us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty" xlink:title="RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:label="loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:title="ShanghaiYishangNetworkTechnologyCoLtdMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:label="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:title="ProceedsFromSaleMaturityAndCollectionsOfInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_SevenDaysGroupHoldingsLimitedMember" xlink:label="loc_ctrp_SevenDaysGroupHoldingsLimitedMember" xlink:title="SevenDaysGroupHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_SevenDaysGroupHoldingsLimitedMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_SevenDaysGroupHoldingsLimitedMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions" xlink:label="loc_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions" xlink:title="LoansAndLeasesReceivableRelatedPartiesAdditions" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AnandaMember" xlink:label="loc_ctrp_AnandaMember" xlink:title="AnandaMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_AnandaMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_AnandaMember" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:label="loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:title="RelatedPartyTransactionPurchasesFromRelatedParty" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_JoyuTourismOperatingGroupMember" xlink:label="loc_ctrp_JoyuTourismOperatingGroupMember" xlink:title="JoyuTourismOperatingGroupMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_JoyuTourismOperatingGroupMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_JoyuTourismOperatingGroupMember" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:title="MinorityInterestOwnershipPercentageByNoncontrollingOwners" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:title="EquityMethodInvestmentOwnershipPercentage" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NumberOfSharedDirectors" xlink:label="loc_ctrp_NumberOfSharedDirectors" xlink:title="NumberOfSharedDirectors" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_ctrp_NumberOfSharedDirectors" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_ctrp_NumberOfSharedDirectors" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PurchasePriceReceivableFromSaleMaturityAndCollectionsOfInvestments" xlink:label="loc_ctrp_PurchasePriceReceivableFromSaleMaturityAndCollectionsOfInvestments" xlink:title="PurchasePriceReceivableFromSaleMaturityAndCollectionsOfInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_ctrp_PurchasePriceReceivableFromSaleMaturityAndCollectionsOfInvestments" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_ctrp_PurchasePriceReceivableFromSaleMaturityAndCollectionsOfInvestments" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PurchasePriceReceivableInstallmentPeriod" xlink:label="loc_ctrp_PurchasePriceReceivableInstallmentPeriod" xlink:title="PurchasePriceReceivableInstallmentPeriod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_ctrp_PurchasePriceReceivableInstallmentPeriod" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_ctrp_PurchasePriceReceivableInstallmentPeriod" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LoansReceivableMaturityTerm" xlink:label="loc_ctrp_LoansReceivableMaturityTerm" xlink:title="LoansReceivableMaturityTerm" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_ctrp_LoansReceivableMaturityTerm" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_ctrp_LoansReceivableMaturityTerm" xlink:type="arc" use="optional" order="11" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="BusinessAcquisitionPercentageOfVotingInterestsAcquired" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:type="arc" use="optional" order="12" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueFromRelatedPartiesCurrent" xlink:label="loc_us-gaap_DueFromRelatedPartiesCurrent" xlink:title="DueFromRelatedPartiesCurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_DueFromRelatedPartiesCurrent" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_DueFromRelatedPartiesCurrent" xlink:type="arc" use="optional" order="13" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueFromRelatedPartiesNoncurrent" xlink:label="loc_us-gaap_DueFromRelatedPartiesNoncurrent" xlink:title="DueFromRelatedPartiesNoncurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_DueFromRelatedPartiesNoncurrent" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_DueFromRelatedPartiesNoncurrent" xlink:type="arc" use="optional" order="14" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent" xlink:label="loc_us-gaap_DueToRelatedPartiesCurrent" xlink:title="DueToRelatedPartiesCurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_DueToRelatedPartiesCurrent" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_DueToRelatedPartiesCurrent" xlink:type="arc" use="optional" order="15" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis" xlink:title="AvailableForSaleEquitySecuritiesAmortizedCostBasis" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="loc_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionLineItems to loc_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis" xlink:type="arc" use="optional" order="16" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdsMember" xlink:label="loc_ctrp_AdsMember" xlink:title="AdsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_ctrp_AdsMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_ctrp_AdsMember" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_FocusMediaMember" xlink:label="loc_ctrp_FocusMediaMember" xlink:title="FocusMediaMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_FocusMediaMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_FocusMediaMember" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RelatedPartiesOfVieMember" xlink:label="loc_ctrp_RelatedPartiesOfVieMember" xlink:title="RelatedPartiesOfVieMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_RelatedPartiesOfVieMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_RelatedPartiesOfVieMember" xlink:type="arc" use="optional" order="8001" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_OthersRelatedPartyTransactionsMember" xlink:label="loc_ctrp_OthersRelatedPartyTransactionsMember" xlink:title="OthersRelatedPartyTransactionsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_OthersRelatedPartyTransactionsMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_OthersRelatedPartyTransactionsMember" xlink:type="arc" use="optional" order="8002" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureTreasuryStockDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AcceleratedShareRepurchasesLineItems" xlink:label="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:title="AcceleratedShareRepurchasesLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AcceleratedShareRepurchasesTable" xlink:label="loc_us-gaap_AcceleratedShareRepurchasesTable" xlink:title="AcceleratedShareRepurchasesTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_us-gaap_AcceleratedShareRepurchasesTable" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_us-gaap_AcceleratedShareRepurchasesTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember" xlink:title="RangeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis" xlink:to="loc_us-gaap_RangeMember" xlink:title="Definition : loc_us-gaap_RangeAxis to loc_us-gaap_RangeMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OptionIndexedToIssuersEquityTypeAxis" xlink:label="loc_us-gaap_OptionIndexedToIssuersEquityTypeAxis" xlink:title="OptionIndexedToIssuersEquityTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OptionIndexedToIssuersEquityTypeDomain" xlink:label="loc_us-gaap_OptionIndexedToIssuersEquityTypeDomain" xlink:title="OptionIndexedToIssuersEquityTypeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_OptionIndexedToIssuersEquityTypeAxis" xlink:to="loc_us-gaap_OptionIndexedToIssuersEquityTypeDomain" xlink:title="Definition : loc_us-gaap_OptionIndexedToIssuersEquityTypeAxis to loc_us-gaap_OptionIndexedToIssuersEquityTypeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityListingsInstrumentAxis" xlink:label="loc_dei_EntityListingsInstrumentAxis" xlink:title="EntityListingsInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_InstrumentDomain" xlink:label="loc_dei_InstrumentDomain" xlink:title="InstrumentDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_EntityListingsInstrumentAxis" xlink:to="loc_dei_InstrumentDomain" xlink:title="Definition : loc_dei_EntityListingsInstrumentAxis to loc_dei_InstrumentDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PositionAxis" xlink:label="loc_us-gaap_PositionAxis" xlink:title="PositionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PositionDomain" xlink:label="loc_us-gaap_PositionDomain" xlink:title="PositionDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PositionAxis" xlink:to="loc_us-gaap_PositionDomain" xlink:title="Definition : loc_us-gaap_PositionAxis to loc_us-gaap_PositionDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis" xlink:title="LongtermDebtTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain" xlink:title="LongtermDebtTypeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis" xlink:to="loc_us-gaap_LongtermDebtTypeDomain" xlink:title="Definition : loc_us-gaap_LongtermDebtTypeAxis to loc_us-gaap_LongtermDebtTypeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember" xlink:title="MaximumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MaximumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MaximumMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_CappedCallOptionMember" xlink:label="loc_ctrp_CappedCallOptionMember" xlink:title="CappedCallOptionMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OptionIndexedToIssuersEquityTypeDomain" xlink:to="loc_ctrp_CappedCallOptionMember" xlink:title="Definition : loc_us-gaap_OptionIndexedToIssuersEquityTypeDomain to loc_ctrp_CappedCallOptionMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdsMember" xlink:label="loc_ctrp_AdsMember" xlink:title="AdsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_InstrumentDomain" xlink:to="loc_ctrp_AdsMember" xlink:title="Definition : loc_dei_InstrumentDomain to loc_ctrp_AdsMember" xlink:type="arc" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongMember" xlink:label="loc_us-gaap_LongMember" xlink:title="LongMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PositionDomain" xlink:to="loc_us-gaap_LongMember" xlink:title="Definition : loc_us-gaap_PositionDomain to loc_us-gaap_LongMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ConvertibleDebt2012Member" xlink:label="loc_ctrp_ConvertibleDebt2012Member" xlink:title="ConvertibleDebt2012Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain" xlink:to="loc_ctrp_ConvertibleDebt2012Member" xlink:title="Definition : loc_us-gaap_LongtermDebtTypeDomain to loc_ctrp_ConvertibleDebt2012Member" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesTable" xlink:to="loc_us-gaap_OptionIndexedToIssuersEquityTypeAxis" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesTable to loc_us-gaap_OptionIndexedToIssuersEquityTypeAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OptionIndexedToIssuersEquityTypeDomain" xlink:label="OptionIndexedToIssuersEquityTypeDomain_1" xlink:title="OptionIndexedToIssuersEquityTypeDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_OptionIndexedToIssuersEquityTypeAxis" xlink:to="OptionIndexedToIssuersEquityTypeDomain_1" xlink:title="Definition : loc_us-gaap_OptionIndexedToIssuersEquityTypeAxis to loc_us-gaap_OptionIndexedToIssuersEquityTypeDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_InstrumentDomain" xlink:label="InstrumentDomain_2" xlink:title="InstrumentDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_EntityListingsInstrumentAxis" xlink:to="InstrumentDomain_2" xlink:title="Definition : loc_dei_EntityListingsInstrumentAxis to loc_dei_InstrumentDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PositionDomain" xlink:label="PositionDomain_3" xlink:title="PositionDomain_3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PositionAxis" xlink:to="PositionDomain_3" xlink:title="Definition : loc_us-gaap_PositionAxis to loc_us-gaap_PositionDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CallOptionMember" xlink:label="loc_us-gaap_CallOptionMember" xlink:title="CallOptionMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OptionIndexedToIssuersEquityTypeDomain" xlink:to="loc_us-gaap_CallOptionMember" xlink:title="Definition : loc_us-gaap_OptionIndexedToIssuersEquityTypeDomain to loc_us-gaap_CallOptionMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShortMember" xlink:label="loc_us-gaap_ShortMember" xlink:title="ShortMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PositionDomain" xlink:to="loc_us-gaap_ShortMember" xlink:title="Definition : loc_us-gaap_PositionDomain to loc_us-gaap_ShortMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_DerivativeNotionalAmount" xlink:label="loc_invest_DerivativeNotionalAmount" xlink:title="DerivativeNotionalAmount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_invest_DerivativeNotionalAmount" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_invest_DerivativeNotionalAmount" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesTable" xlink:to="loc_dei_EntityListingsInstrumentAxis" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesTable to loc_dei_EntityListingsInstrumentAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OptionIndexedToIssuersEquityIndexedShares" xlink:label="loc_us-gaap_OptionIndexedToIssuersEquityIndexedShares" xlink:title="OptionIndexedToIssuersEquityIndexedShares" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_us-gaap_OptionIndexedToIssuersEquityIndexedShares" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_us-gaap_OptionIndexedToIssuersEquityIndexedShares" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesTable" xlink:to="loc_us-gaap_RangeAxis" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesTable to loc_us-gaap_RangeAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AcceleratedShareRepurchasesArrangementNumberOfComponents" xlink:label="loc_ctrp_AcceleratedShareRepurchasesArrangementNumberOfComponents" xlink:title="AcceleratedShareRepurchasesArrangementNumberOfComponents" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_ctrp_AcceleratedShareRepurchasesArrangementNumberOfComponents" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_ctrp_AcceleratedShareRepurchasesArrangementNumberOfComponents" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesTable" xlink:to="loc_us-gaap_PositionAxis" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesTable to loc_us-gaap_PositionAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AcceleratedShareRepurchasesArrangementTreasureStockRepurchasePrepayment" xlink:label="loc_ctrp_AcceleratedShareRepurchasesArrangementTreasureStockRepurchasePrepayment" xlink:title="AcceleratedShareRepurchasesArrangementTreasureStockRepurchasePrepayment" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_ctrp_AcceleratedShareRepurchasesArrangementTreasureStockRepurchasePrepayment" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_ctrp_AcceleratedShareRepurchasesArrangementTreasureStockRepurchasePrepayment" xlink:type="arc" use="optional" order="5" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesTable" xlink:to="loc_us-gaap_LongtermDebtTypeAxis" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesTable to loc_us-gaap_LongtermDebtTypeAxis" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OptionIndexedToIssuersEquityStrikePrice" xlink:label="loc_us-gaap_OptionIndexedToIssuersEquityStrikePrice" xlink:title="OptionIndexedToIssuersEquityStrikePrice" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_us-gaap_OptionIndexedToIssuersEquityStrikePrice" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_us-gaap_OptionIndexedToIssuersEquityStrikePrice" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DerivativeOptionStrikeNotionPrice" xlink:label="loc_ctrp_DerivativeOptionStrikeNotionPrice" xlink:title="DerivativeOptionStrikeNotionPrice" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_ctrp_DerivativeOptionStrikeNotionPrice" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_ctrp_DerivativeOptionStrikeNotionPrice" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AcceleratedShareRepurchasesSettlementPremiumThatWillBeRetained" xlink:label="loc_ctrp_AcceleratedShareRepurchasesSettlementPremiumThatWillBeRetained" xlink:title="AcceleratedShareRepurchasesSettlementPremiumThatWillBeRetained" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_ctrp_AcceleratedShareRepurchasesSettlementPremiumThatWillBeRetained" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_ctrp_AcceleratedShareRepurchasesSettlementPremiumThatWillBeRetained" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AcceleratedShareRepurchasesSettlementInitialCashPrepaymentThatWillBeRetained" xlink:label="loc_ctrp_AcceleratedShareRepurchasesSettlementInitialCashPrepaymentThatWillBeRetained" xlink:title="AcceleratedShareRepurchasesSettlementInitialCashPrepaymentThatWillBeRetained" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_ctrp_AcceleratedShareRepurchasesSettlementInitialCashPrepaymentThatWillBeRetained" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_ctrp_AcceleratedShareRepurchasesSettlementInitialCashPrepaymentThatWillBeRetained" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AcceleratedShareRepurchasesArrangementCashSettlementAmount" xlink:label="loc_ctrp_AcceleratedShareRepurchasesArrangementCashSettlementAmount" xlink:title="AcceleratedShareRepurchasesArrangementCashSettlementAmount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_ctrp_AcceleratedShareRepurchasesArrangementCashSettlementAmount" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_ctrp_AcceleratedShareRepurchasesArrangementCashSettlementAmount" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AcceleratedShareRepurchasesSettlementNumberOfSharesThatWillBeReceived" xlink:label="loc_ctrp_AcceleratedShareRepurchasesSettlementNumberOfSharesThatWillBeReceived" xlink:title="AcceleratedShareRepurchasesSettlementNumberOfSharesThatWillBeReceived" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_ctrp_AcceleratedShareRepurchasesSettlementNumberOfSharesThatWillBeReceived" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_ctrp_AcceleratedShareRepurchasesSettlementNumberOfSharesThatWillBeReceived" xlink:type="arc" use="optional" order="11" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt" xlink:label="loc_us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt" xlink:title="AcceleratedShareRepurchasesSettlementPaymentOrReceipt" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt" xlink:type="arc" use="optional" order="12" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:title="DebtConversionConvertedInstrumentAmount1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:type="arc" use="optional" order="13" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:type="arc" use="optional" order="14" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="loc_us-gaap_TreasuryStockShares" xlink:title="TreasuryStockShares" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_us-gaap_TreasuryStockShares" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_us-gaap_TreasuryStockShares" xlink:type="arc" use="optional" order="15" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue" xlink:title="TreasuryStockValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcceleratedShareRepurchasesLineItems" xlink:to="loc_us-gaap_TreasuryStockValue" xlink:title="Definition : loc_us-gaap_AcceleratedShareRepurchasesLineItems to loc_us-gaap_TreasuryStockValue" xlink:type="arc" use="optional" order="16" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureInvestmentsDetails2">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:title="ScheduleOfInvestmentsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:title="ScheduleOfInvestmentsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_ScheduleOfInvestmentsTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerAxis" xlink:label="loc_invest_InvestmentIssuerAxis" xlink:title="InvestmentIssuerAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="loc_invest_InvestmentIssuerDomain" xlink:title="InvestmentIssuerDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_invest_InvestmentIssuerAxis" xlink:to="loc_invest_InvestmentIssuerDomain" xlink:title="Definition : loc_invest_InvestmentIssuerAxis to loc_invest_InvestmentIssuerDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PurchaseOfStockAxis" xlink:label="loc_ctrp_PurchaseOfStockAxis" xlink:title="PurchaseOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PurchaseOfStockNameOfTransactionDomain" xlink:label="loc_ctrp_PurchaseOfStockNameOfTransactionDomain" xlink:title="PurchaseOfStockNameOfTransactionDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ctrp_PurchaseOfStockAxis" xlink:to="loc_ctrp_PurchaseOfStockNameOfTransactionDomain" xlink:title="Definition : loc_ctrp_PurchaseOfStockAxis to loc_ctrp_PurchaseOfStockNameOfTransactionDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HantingMember" xlink:label="loc_ctrp_HantingMember" xlink:title="HantingMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_HantingMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_HantingMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember" xlink:title="CommonStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_us-gaap_CommonStockMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_us-gaap_CommonStockMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PrivatePlacementMember" xlink:label="loc_us-gaap_PrivatePlacementMember" xlink:title="PrivatePlacementMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_PurchaseOfStockNameOfTransactionDomain" xlink:to="loc_us-gaap_PrivatePlacementMember" xlink:title="Definition : loc_ctrp_PurchaseOfStockNameOfTransactionDomain to loc_us-gaap_PrivatePlacementMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_invest_InvestmentIssuerAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_invest_InvestmentIssuerAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PurchaseOfStockNameOfTransactionDomain" xlink:label="PurchaseOfStockNameOfTransactionDomain_1" xlink:title="PurchaseOfStockNameOfTransactionDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ctrp_PurchaseOfStockAxis" xlink:to="PurchaseOfStockNameOfTransactionDomain_1" xlink:title="Definition : loc_ctrp_PurchaseOfStockAxis to loc_ctrp_PurchaseOfStockNameOfTransactionDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdsMember" xlink:label="loc_ctrp_AdsMember" xlink:title="AdsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_ctrp_AdsMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_ctrp_AdsMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShareholdersMember" xlink:label="loc_ctrp_ShareholdersMember" xlink:title="ShareholdersMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_PurchaseOfStockNameOfTransactionDomain" xlink:to="loc_ctrp_ShareholdersMember" xlink:title="Definition : loc_ctrp_PurchaseOfStockNameOfTransactionDomain to loc_ctrp_ShareholdersMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PurchaseOfSharesSharesPurchased" xlink:label="loc_ctrp_PurchaseOfSharesSharesPurchased" xlink:title="PurchaseOfSharesSharesPurchased" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_ctrp_PurchaseOfSharesSharesPurchased" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_ctrp_PurchaseOfSharesSharesPurchased" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IPOMember" xlink:label="loc_us-gaap_IPOMember" xlink:title="IPOMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_PurchaseOfStockNameOfTransactionDomain" xlink:to="loc_us-gaap_IPOMember" xlink:title="Definition : loc_ctrp_PurchaseOfStockNameOfTransactionDomain to loc_us-gaap_IPOMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PurchaseOfSharesPricePerShare" xlink:label="loc_ctrp_PurchaseOfSharesPricePerShare" xlink:title="PurchaseOfSharesPricePerShare" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_ctrp_PurchaseOfSharesPricePerShare" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_ctrp_PurchaseOfSharesPricePerShare" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_ctrp_PurchaseOfStockAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_ctrp_PurchaseOfStockAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquireInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments" xlink:title="PaymentsToAcquireInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_PaymentsToAcquireInvestments" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PurchaseOfSharesNumberAggregate" xlink:label="loc_ctrp_PurchaseOfSharesNumberAggregate" xlink:title="PurchaseOfSharesNumberAggregate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_ctrp_PurchaseOfSharesNumberAggregate" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_ctrp_PurchaseOfSharesNumberAggregate" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PurchaseOfSharesPercentageOfEquityInterestPurchasedAggregate" xlink:label="loc_ctrp_PurchaseOfSharesPercentageOfEquityInterestPurchasedAggregate" xlink:title="PurchaseOfSharesPercentageOfEquityInterestPurchasedAggregate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_ctrp_PurchaseOfSharesPercentageOfEquityInterestPurchasedAggregate" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_ctrp_PurchaseOfSharesPercentageOfEquityInterestPurchasedAggregate" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharePrice" xlink:label="loc_us-gaap_SharePrice" xlink:title="SharePrice" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_SharePrice" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_SharePrice" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecurities" xlink:title="AvailableForSaleSecurities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_AvailableForSaleSecurities" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_AvailableForSaleSecurities" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" xlink:title="OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" xlink:type="arc" use="optional" order="9" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureTaxationDetails5">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxHolidayLineItems" xlink:label="loc_us-gaap_IncomeTaxHolidayLineItems" xlink:title="IncomeTaxHolidayLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxHolidayTable" xlink:label="loc_us-gaap_IncomeTaxHolidayTable" xlink:title="IncomeTaxHolidayTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeTaxHolidayLineItems" xlink:to="loc_us-gaap_IncomeTaxHolidayTable" xlink:title="Definition : loc_us-gaap_IncomeTaxHolidayLineItems to loc_us-gaap_IncomeTaxHolidayTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdsMember" xlink:label="loc_ctrp_AdsMember" xlink:title="AdsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_ctrp_AdsMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_ctrp_AdsMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeTaxHolidayTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_IncomeTaxHolidayTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxHolidayAggregateDollarAmount" xlink:label="loc_us-gaap_IncomeTaxHolidayAggregateDollarAmount" xlink:title="IncomeTaxHolidayAggregateDollarAmount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxHolidayLineItems" xlink:to="loc_us-gaap_IncomeTaxHolidayAggregateDollarAmount" xlink:title="Definition : loc_us-gaap_IncomeTaxHolidayLineItems to loc_us-gaap_IncomeTaxHolidayAggregateDollarAmount" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare" xlink:label="loc_us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare" xlink:title="IncomeTaxHolidayIncomeTaxBenefitsPerShare" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxHolidayLineItems" xlink:to="loc_us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare" xlink:title="Definition : loc_us-gaap_IncomeTaxHolidayLineItems to loc_us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DilutedNetIncomePerShareEffect" xlink:label="loc_ctrp_DilutedNetIncomePerShareEffect" xlink:title="DilutedNetIncomePerShareEffect" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxHolidayLineItems" xlink:to="loc_ctrp_DilutedNetIncomePerShareEffect" xlink:title="Definition : loc_us-gaap_IncomeTaxHolidayLineItems to loc_ctrp_DilutedNetIncomePerShareEffect" xlink:type="arc" use="optional" order="4" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureEarningsPerShareDetails">
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EarningPerShareLineItems" xlink:label="loc_ctrp_EarningPerShareLineItems" xlink:title="EarningPerShareLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:title="ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ctrp_EarningPerShareLineItems" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:title="Definition : loc_ctrp_EarningPerShareLineItems to loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:title="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:title="AntidilutiveSecuritiesNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:title="Definition : loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis to loc_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember" xlink:title="CommonStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_us-gaap_CommonStockMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_us-gaap_CommonStockMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember" xlink:title="EmployeeStockOptionMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:to="loc_us-gaap_EmployeeStockOptionMember" xlink:title="Definition : loc_us-gaap_AntidilutiveSecuritiesNameDomain to loc_us-gaap_EmployeeStockOptionMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="AntidilutiveSecuritiesNameDomain_1" xlink:title="AntidilutiveSecuritiesNameDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:to="AntidilutiveSecuritiesNameDomain_1" xlink:title="Definition : loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis to loc_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdsMember" xlink:label="loc_ctrp_AdsMember" xlink:title="AdsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_ctrp_AdsMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_ctrp_AdsMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WarrantMember" xlink:label="loc_us-gaap_WarrantMember" xlink:title="WarrantMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:to="loc_us-gaap_WarrantMember" xlink:title="Definition : loc_us-gaap_AntidilutiveSecuritiesNameDomain to loc_us-gaap_WarrantMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic" xlink:title="EarningsPerShareBasic" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_EarningPerShareLineItems" xlink:to="loc_us-gaap_EarningsPerShareBasic" xlink:title="Definition : loc_ctrp_EarningPerShareLineItems to loc_us-gaap_EarningsPerShareBasic" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable to loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted" xlink:title="EarningsPerShareDiluted" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_EarningPerShareLineItems" xlink:to="loc_us-gaap_EarningsPerShareDiluted" xlink:title="Definition : loc_ctrp_EarningPerShareLineItems to loc_us-gaap_EarningsPerShareDiluted" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:title="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_EarningPerShareLineItems" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:title="Definition : loc_ctrp_EarningPerShareLineItems to loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:type="arc" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockCompensationPlanMember" xlink:label="loc_us-gaap_StockCompensationPlanMember" xlink:title="StockCompensationPlanMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:to="loc_us-gaap_StockCompensationPlanMember" xlink:title="Definition : loc_us-gaap_AntidilutiveSecuritiesNameDomain to loc_us-gaap_StockCompensationPlanMember" xlink:type="arc" order="8000" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails15">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityClassOfTreasuryStockLineItems" xlink:label="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:title="EquityClassOfTreasuryStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfTreasuryStockTable" xlink:label="loc_us-gaap_ClassOfTreasuryStockTable" xlink:title="ClassOfTreasuryStockTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:to="loc_us-gaap_ClassOfTreasuryStockTable" xlink:title="Definition : loc_us-gaap_EquityClassOfTreasuryStockLineItems to loc_us-gaap_ClassOfTreasuryStockTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis" xlink:title="LongtermDebtTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain" xlink:title="LongtermDebtTypeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis" xlink:to="loc_us-gaap_LongtermDebtTypeDomain" xlink:title="Definition : loc_us-gaap_LongtermDebtTypeAxis to loc_us-gaap_LongtermDebtTypeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdsMember" xlink:label="loc_ctrp_AdsMember" xlink:title="AdsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_ctrp_AdsMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_ctrp_AdsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ConvertibleDebt2012Member" xlink:label="loc_ctrp_ConvertibleDebt2012Member" xlink:title="ConvertibleDebt2012Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain" xlink:to="loc_ctrp_ConvertibleDebt2012Member" xlink:title="Definition : loc_us-gaap_LongtermDebtTypeDomain to loc_ctrp_ConvertibleDebt2012Member" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_ClassOfTreasuryStockTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount" xlink:title="StockRepurchaseProgramAuthorizedAmount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount" xlink:title="Definition : loc_us-gaap_EquityClassOfTreasuryStockLineItems to loc_us-gaap_StockRepurchaseProgramAuthorizedAmount" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable" xlink:to="loc_us-gaap_LongtermDebtTypeAxis" xlink:title="Definition : loc_us-gaap_ClassOfTreasuryStockTable to loc_us-gaap_LongtermDebtTypeAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NumberOfShareRepurchasePlans" xlink:label="loc_ctrp_NumberOfShareRepurchasePlans" xlink:title="NumberOfShareRepurchasePlans" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:to="loc_ctrp_NumberOfShareRepurchasePlans" xlink:title="Definition : loc_us-gaap_EquityClassOfTreasuryStockLineItems to loc_ctrp_NumberOfShareRepurchasePlans" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockRepurchasedDuringPeriodShares" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares" xlink:title="StockRepurchasedDuringPeriodShares" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares" xlink:title="Definition : loc_us-gaap_EquityClassOfTreasuryStockLineItems to loc_us-gaap_StockRepurchasedDuringPeriodShares" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:title="TreasuryStockValueAcquiredCostMethod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:title="Definition : loc_us-gaap_EquityClassOfTreasuryStockLineItems to loc_us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:title="DebtConversionConvertedInstrumentAmount1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:title="Definition : loc_us-gaap_EquityClassOfTreasuryStockLineItems to loc_us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="Definition : loc_us-gaap_EquityClassOfTreasuryStockLineItems to loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="loc_us-gaap_TreasuryStockShares" xlink:title="TreasuryStockShares" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:to="loc_us-gaap_TreasuryStockShares" xlink:title="Definition : loc_us-gaap_EquityClassOfTreasuryStockLineItems to loc_us-gaap_TreasuryStockShares" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue" xlink:title="TreasuryStockValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems" xlink:to="loc_us-gaap_TreasuryStockValue" xlink:title="Definition : loc_us-gaap_EquityClassOfTreasuryStockLineItems to loc_us-gaap_TreasuryStockValue" xlink:type="arc" use="optional" order="9" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureLongTermDebtDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_DebtInstrumentTable" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_DebtInstrumentTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember" xlink:title="RangeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis" xlink:to="loc_us-gaap_RangeMember" xlink:title="Definition : loc_us-gaap_RangeAxis to loc_us-gaap_RangeMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PositionAxis" xlink:label="loc_us-gaap_PositionAxis" xlink:title="PositionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PositionDomain" xlink:label="loc_us-gaap_PositionDomain" xlink:title="PositionDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PositionAxis" xlink:to="loc_us-gaap_PositionDomain" xlink:title="Definition : loc_us-gaap_PositionAxis to loc_us-gaap_PositionDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis" xlink:title="LongtermDebtTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain" xlink:title="LongtermDebtTypeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis" xlink:to="loc_us-gaap_LongtermDebtTypeDomain" xlink:title="Definition : loc_us-gaap_LongtermDebtTypeAxis to loc_us-gaap_LongtermDebtTypeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeByNatureAxis" xlink:label="loc_us-gaap_DerivativeByNatureAxis" xlink:title="DerivativeByNatureAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeNameDomain" xlink:label="loc_us-gaap_DerivativeNameDomain" xlink:title="DerivativeNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeByNatureAxis" xlink:to="loc_us-gaap_DerivativeNameDomain" xlink:title="Definition : loc_us-gaap_DerivativeByNatureAxis to loc_us-gaap_DerivativeNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdsMember" xlink:label="loc_ctrp_AdsMember" xlink:title="AdsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_ctrp_AdsMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_ctrp_AdsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember" xlink:title="MinimumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MinimumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MinimumMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongMember" xlink:label="loc_us-gaap_LongMember" xlink:title="LongMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PositionDomain" xlink:to="loc_us-gaap_LongMember" xlink:title="Definition : loc_us-gaap_PositionDomain to loc_us-gaap_LongMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ConvertibleDebt2017Member" xlink:label="loc_ctrp_ConvertibleDebt2017Member" xlink:title="ConvertibleDebt2017Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain" xlink:to="loc_ctrp_ConvertibleDebt2017Member" xlink:title="Definition : loc_us-gaap_LongtermDebtTypeDomain to loc_ctrp_ConvertibleDebt2017Member" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CallOptionMember" xlink:label="loc_us-gaap_CallOptionMember" xlink:title="CallOptionMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeNameDomain" xlink:to="loc_us-gaap_CallOptionMember" xlink:title="Definition : loc_us-gaap_DerivativeNameDomain to loc_us-gaap_CallOptionMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable" xlink:to="loc_us-gaap_LongtermDebtTypeAxis" xlink:title="Definition : loc_us-gaap_DebtInstrumentTable to loc_us-gaap_LongtermDebtTypeAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="LongtermDebtTypeDomain_1" xlink:title="LongtermDebtTypeDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis" xlink:to="LongtermDebtTypeDomain_1" xlink:title="Definition : loc_us-gaap_LongtermDebtTypeAxis to loc_us-gaap_LongtermDebtTypeDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeNameDomain" xlink:label="DerivativeNameDomain_2" xlink:title="DerivativeNameDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeByNatureAxis" xlink:to="DerivativeNameDomain_2" xlink:title="Definition : loc_us-gaap_DerivativeByNatureAxis to loc_us-gaap_DerivativeNameDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember" xlink:title="MaximumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MaximumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MaximumMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ConvertibleDebt2018Member" xlink:label="loc_ctrp_ConvertibleDebt2018Member" xlink:title="ConvertibleDebt2018Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain" xlink:to="loc_ctrp_ConvertibleDebt2018Member" xlink:title="Definition : loc_us-gaap_LongtermDebtTypeDomain to loc_ctrp_ConvertibleDebt2018Member" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WarrantMember" xlink:label="loc_us-gaap_WarrantMember" xlink:title="WarrantMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeNameDomain" xlink:to="loc_us-gaap_WarrantMember" xlink:title="Definition : loc_us-gaap_DerivativeNameDomain to loc_us-gaap_WarrantMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent" xlink:title="LongTermDebtNoncurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_LongTermDebtNoncurrent" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_LongTermDebtNoncurrent" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_DebtInstrumentTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_DebtInstrumentFaceAmount" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable" xlink:to="loc_us-gaap_DerivativeByNatureAxis" xlink:title="Definition : loc_us-gaap_DebtInstrumentTable to loc_us-gaap_DerivativeByNatureAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:title="DebtInstrumentInterestRateStatedPercentage" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable" xlink:to="loc_us-gaap_PositionAxis" xlink:title="Definition : loc_us-gaap_DebtInstrumentTable to loc_us-gaap_PositionAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:title="DebtInstrumentConvertibleConversionRatio1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:type="arc" use="optional" order="5" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable" xlink:to="loc_us-gaap_RangeAxis" xlink:title="Definition : loc_us-gaap_DebtInstrumentTable to loc_us-gaap_RangeAxis" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:title="DebtInstrumentConvertibleConversionPrice1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DebtInstrumentConvertibleCashIncentivePercentage" xlink:label="loc_ctrp_DebtInstrumentConvertibleCashIncentivePercentage" xlink:title="DebtInstrumentConvertibleCashIncentivePercentage" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_ctrp_DebtInstrumentConvertibleCashIncentivePercentage" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_ctrp_DebtInstrumentConvertibleCashIncentivePercentage" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:title="DebtConversionConvertedInstrumentAmount1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:title="DebtConversionConvertedInstrumentSharesIssued1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfDebt" xlink:label="loc_us-gaap_RepaymentsOfDebt" xlink:title="RepaymentsOfDebt" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_RepaymentsOfDebt" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_RepaymentsOfDebt" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DebtInstrumentConvertibleAccruedAndUnpaidInterest" xlink:label="loc_ctrp_DebtInstrumentConvertibleAccruedAndUnpaidInterest" xlink:title="DebtInstrumentConvertibleAccruedAndUnpaidInterest" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_ctrp_DebtInstrumentConvertibleAccruedAndUnpaidInterest" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_ctrp_DebtInstrumentConvertibleAccruedAndUnpaidInterest" xlink:type="arc" use="optional" order="11" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DebtInstrumentConvertibleInducementPremium" xlink:label="loc_ctrp_DebtInstrumentConvertibleInducementPremium" xlink:title="DebtInstrumentConvertibleInducementPremium" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_ctrp_DebtInstrumentConvertibleInducementPremium" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_ctrp_DebtInstrumentConvertibleInducementPremium" xlink:type="arc" use="optional" order="12" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromDerivativeInstrumentFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromDerivativeInstrumentFinancingActivities" xlink:title="ProceedsFromDerivativeInstrumentFinancingActivities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_ProceedsFromDerivativeInstrumentFinancingActivities" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_ProceedsFromDerivativeInstrumentFinancingActivities" xlink:type="arc" use="optional" order="13" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt" xlink:title="ProceedsFromConvertibleDebt" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_ProceedsFromConvertibleDebt" xlink:type="arc" use="optional" order="14" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DebtIssuanceCosts" xlink:label="loc_us-gaap_DebtIssuanceCosts" xlink:title="DebtIssuanceCosts" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_DebtIssuanceCosts" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_DebtIssuanceCosts" xlink:type="arc" use="optional" order="15" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DebtInstrumentRepurchasePriceAsPercentageOfPrincipalAmountUnderNonContingentOption" xlink:label="loc_ctrp_DebtInstrumentRepurchasePriceAsPercentageOfPrincipalAmountUnderNonContingentOption" xlink:title="DebtInstrumentRepurchasePriceAsPercentageOfPrincipalAmountUnderNonContingentOption" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_ctrp_DebtInstrumentRepurchasePriceAsPercentageOfPrincipalAmountUnderNonContingentOption" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_ctrp_DebtInstrumentRepurchasePriceAsPercentageOfPrincipalAmountUnderNonContingentOption" xlink:type="arc" use="optional" order="16" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DebtInstrumentRepurchasePriceAsPercentageOfPrincipalAmountUnderContingentOption" xlink:label="loc_ctrp_DebtInstrumentRepurchasePriceAsPercentageOfPrincipalAmountUnderContingentOption" xlink:title="DebtInstrumentRepurchasePriceAsPercentageOfPrincipalAmountUnderContingentOption" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_ctrp_DebtInstrumentRepurchasePriceAsPercentageOfPrincipalAmountUnderContingentOption" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_ctrp_DebtInstrumentRepurchasePriceAsPercentageOfPrincipalAmountUnderContingentOption" xlink:type="arc" use="optional" order="17" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DebtInstrumentConvertibleConversionPriceAfterEffectOfPurchasedCallOptionAndWarrants" xlink:label="loc_ctrp_DebtInstrumentConvertibleConversionPriceAfterEffectOfPurchasedCallOptionAndWarrants" xlink:title="DebtInstrumentConvertibleConversionPriceAfterEffectOfPurchasedCallOptionAndWarrants" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_ctrp_DebtInstrumentConvertibleConversionPriceAfterEffectOfPurchasedCallOptionAndWarrants" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_ctrp_DebtInstrumentConvertibleConversionPriceAfterEffectOfPurchasedCallOptionAndWarrants" xlink:type="arc" use="optional" order="18" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromIssuanceOfWarrants" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfWarrants" xlink:title="ProceedsFromIssuanceOfWarrants" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfWarrants" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_ProceedsFromIssuanceOfWarrants" xlink:type="arc" use="optional" order="19" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:title="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:type="arc" use="optional" order="21" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ClassOfWarrantOrRightExpectedTerm" xlink:label="loc_ctrp_ClassOfWarrantOrRightExpectedTerm" xlink:title="ClassOfWarrantOrRightExpectedTerm" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_ctrp_ClassOfWarrantOrRightExpectedTerm" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_ctrp_ClassOfWarrantOrRightExpectedTerm" xlink:type="arc" use="optional" order="22" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NumberOfSharesAgreedToBeSoldOnExerciseOfPurchasedCallOptions" xlink:label="loc_ctrp_NumberOfSharesAgreedToBeSoldOnExerciseOfPurchasedCallOptions" xlink:title="NumberOfSharesAgreedToBeSoldOnExerciseOfPurchasedCallOptions" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_ctrp_NumberOfSharesAgreedToBeSoldOnExerciseOfPurchasedCallOptions" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_ctrp_NumberOfSharesAgreedToBeSoldOnExerciseOfPurchasedCallOptions" xlink:type="arc" use="optional" order="23" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConvertibleDebtMember" xlink:label="loc_us-gaap_ConvertibleDebtMember" xlink:title="ConvertibleDebtMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain" xlink:to="loc_us-gaap_ConvertibleDebtMember" xlink:title="Definition : loc_us-gaap_LongtermDebtTypeDomain to loc_us-gaap_ConvertibleDebtMember" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt" xlink:title="LongTermDebt" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="loc_us-gaap_LongTermDebt" xlink:title="Definition : loc_us-gaap_DebtInstrumentLineItems to loc_us-gaap_LongTermDebt" xlink:type="arc" use="optional" order="8000" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails16">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="loc_us-gaap_ConcentrationRiskLineItems" xlink:title="ConcentrationRiskLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="loc_us-gaap_ConcentrationRiskTable" xlink:title="ConcentrationRiskTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems" xlink:to="loc_us-gaap_ConcentrationRiskTable" xlink:title="Definition : loc_us-gaap_ConcentrationRiskLineItems to loc_us-gaap_ConcentrationRiskTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:title="ConcentrationRiskByBenchmarkAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:title="ConcentrationRiskBenchmarkDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:title="Definition : loc_us-gaap_ConcentrationRiskByBenchmarkAxis to loc_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis" xlink:title="ConcentrationRiskByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain" xlink:title="ConcentrationRiskTypeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain" xlink:title="Definition : loc_us-gaap_ConcentrationRiskByTypeAxis to loc_us-gaap_ConcentrationRiskTypeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SalesMember" xlink:label="loc_us-gaap_SalesMember" xlink:title="SalesMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:to="loc_us-gaap_SalesMember" xlink:title="Definition : loc_us-gaap_ConcentrationRiskBenchmarkDomain to loc_us-gaap_SalesMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CustomerConcentrationRiskMember" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember" xlink:title="CustomerConcentrationRiskMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember" xlink:title="Definition : loc_us-gaap_ConcentrationRiskTypeDomain to loc_us-gaap_CustomerConcentrationRiskMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:title="Definition : loc_us-gaap_ConcentrationRiskTable to loc_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="ConcentrationRiskBenchmarkDomain_1" xlink:title="ConcentrationRiskBenchmarkDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:to="ConcentrationRiskBenchmarkDomain_1" xlink:title="Definition : loc_us-gaap_ConcentrationRiskByBenchmarkAxis to loc_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="ConcentrationRiskTypeDomain_2" xlink:title="ConcentrationRiskTypeDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis" xlink:to="ConcentrationRiskTypeDomain_2" xlink:title="Definition : loc_us-gaap_ConcentrationRiskByTypeAxis to loc_us-gaap_ConcentrationRiskTypeDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsReceivableMember" xlink:label="loc_us-gaap_AccountsReceivableMember" xlink:title="AccountsReceivableMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:to="loc_us-gaap_AccountsReceivableMember" xlink:title="Definition : loc_us-gaap_ConcentrationRiskBenchmarkDomain to loc_us-gaap_AccountsReceivableMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NumberOfCustomersIndividuallyExceeding10Percent" xlink:label="loc_ctrp_NumberOfCustomersIndividuallyExceeding10Percent" xlink:title="NumberOfCustomersIndividuallyExceeding10Percent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems" xlink:to="loc_ctrp_NumberOfCustomersIndividuallyExceeding10Percent" xlink:title="Definition : loc_us-gaap_ConcentrationRiskLineItems to loc_ctrp_NumberOfCustomersIndividuallyExceeding10Percent" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis" xlink:title="Definition : loc_us-gaap_ConcentrationRiskTable to loc_us-gaap_ConcentrationRiskByTypeAxis" xlink:type="arc" use="optional" order="2" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails14">
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ScheduleOfStatutoryReservesLineItems" xlink:label="loc_ctrp_ScheduleOfStatutoryReservesLineItems" xlink:title="ScheduleOfStatutoryReservesLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable" xlink:title="StatementTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ctrp_ScheduleOfStatutoryReservesLineItems" xlink:to="loc_us-gaap_StatementTable" xlink:title="Definition : loc_ctrp_ScheduleOfStatutoryReservesLineItems to loc_us-gaap_StatementTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis" xlink:title="StatementGeographicalAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain" xlink:title="SegmentGeographicalDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis" xlink:to="loc_us-gaap_SegmentGeographicalDomain" xlink:title="Definition : loc_us-gaap_StatementGeographicalAxis to loc_us-gaap_SegmentGeographicalDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd#country_CN" xlink:label="loc_country_CN" xlink:title="CN" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain" xlink:to="loc_country_CN" xlink:title="Definition : loc_us-gaap_SegmentGeographicalDomain to loc_country_CN" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DividendsAbstract" xlink:label="loc_us-gaap_DividendsAbstract" xlink:title="DividendsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RestrictedNetAssetsOfCompanysPRCSubsidiariesAndVIEsNotDistributableInFormOfDividendsToParent" xlink:label="loc_ctrp_RestrictedNetAssetsOfCompanysPRCSubsidiariesAndVIEsNotDistributableInFormOfDividendsToParent" xlink:title="RestrictedNetAssetsOfCompanysPRCSubsidiariesAndVIEsNotDistributableInFormOfDividendsToParent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsAbstract" xlink:to="loc_ctrp_RestrictedNetAssetsOfCompanysPRCSubsidiariesAndVIEsNotDistributableInFormOfDividendsToParent" xlink:title="Definition : loc_us-gaap_DividendsAbstract to loc_ctrp_RestrictedNetAssetsOfCompanysPRCSubsidiariesAndVIEsNotDistributableInFormOfDividendsToParent" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable" xlink:to="loc_us-gaap_StatementGeographicalAxis" xlink:title="Definition : loc_us-gaap_StatementTable to loc_us-gaap_StatementGeographicalAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd#country_TW" xlink:label="loc_country_TW" xlink:title="TW" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain" xlink:to="loc_country_TW" xlink:title="Definition : loc_us-gaap_SegmentGeographicalDomain to loc_country_TW" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PortionOfAftertaxProfitToBeAllocatedToGeneralReserveUnderPRCLaw" xlink:label="loc_ctrp_PortionOfAftertaxProfitToBeAllocatedToGeneralReserveUnderPRCLaw" xlink:title="PortionOfAftertaxProfitToBeAllocatedToGeneralReserveUnderPRCLaw" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_ScheduleOfStatutoryReservesLineItems" xlink:to="loc_ctrp_PortionOfAftertaxProfitToBeAllocatedToGeneralReserveUnderPRCLaw" xlink:title="Definition : loc_ctrp_ScheduleOfStatutoryReservesLineItems to loc_ctrp_PortionOfAftertaxProfitToBeAllocatedToGeneralReserveUnderPRCLaw" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AccumulatedProfitOfSubsidiariesInPRCDistributableInFormOfDividendsToParent" xlink:label="loc_ctrp_AccumulatedProfitOfSubsidiariesInPRCDistributableInFormOfDividendsToParent" xlink:title="AccumulatedProfitOfSubsidiariesInPRCDistributableInFormOfDividendsToParent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsAbstract" xlink:to="loc_ctrp_AccumulatedProfitOfSubsidiariesInPRCDistributableInFormOfDividendsToParent" xlink:title="Definition : loc_us-gaap_DividendsAbstract to loc_ctrp_AccumulatedProfitOfSubsidiariesInPRCDistributableInFormOfDividendsToParent" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RequiredGeneralReserveRegisteredCapitalRatioToDeforceCompulsoryNetProfitAllocationToGeneralReserve" xlink:label="loc_ctrp_RequiredGeneralReserveRegisteredCapitalRatioToDeforceCompulsoryNetProfitAllocationToGeneralReserve" xlink:title="RequiredGeneralReserveRegisteredCapitalRatioToDeforceCompulsoryNetProfitAllocationToGeneralReserve" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_ScheduleOfStatutoryReservesLineItems" xlink:to="loc_ctrp_RequiredGeneralReserveRegisteredCapitalRatioToDeforceCompulsoryNetProfitAllocationToGeneralReserve" xlink:title="Definition : loc_ctrp_ScheduleOfStatutoryReservesLineItems to loc_ctrp_RequiredGeneralReserveRegisteredCapitalRatioToDeforceCompulsoryNetProfitAllocationToGeneralReserve" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WithholdingTaxRateForDividendsDistributedByForeignInvestedEnterpriseToTheirImmediateHoldingCompaniesOutsideMainlandChina" xlink:label="loc_ctrp_WithholdingTaxRateForDividendsDistributedByForeignInvestedEnterpriseToTheirImmediateHoldingCompaniesOutsideMainlandChina" xlink:title="WithholdingTaxRateForDividendsDistributedByForeignInvestedEnterpriseToTheirImmediateHoldingCompaniesOutsideMainlandChina" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsAbstract" xlink:to="loc_ctrp_WithholdingTaxRateForDividendsDistributedByForeignInvestedEnterpriseToTheirImmediateHoldingCompaniesOutsideMainlandChina" xlink:title="Definition : loc_us-gaap_DividendsAbstract to loc_ctrp_WithholdingTaxRateForDividendsDistributedByForeignInvestedEnterpriseToTheirImmediateHoldingCompaniesOutsideMainlandChina" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AmountAllocatedToStatutoryReserves" xlink:label="loc_ctrp_AmountAllocatedToStatutoryReserves" xlink:title="AmountAllocatedToStatutoryReserves" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_ScheduleOfStatutoryReservesLineItems" xlink:to="loc_ctrp_AmountAllocatedToStatutoryReserves" xlink:title="Definition : loc_ctrp_ScheduleOfStatutoryReservesLineItems to loc_ctrp_AmountAllocatedToStatutoryReserves" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AuthorizedDividendToParentForRepurchaseOfAds" xlink:label="loc_ctrp_AuthorizedDividendToParentForRepurchaseOfAds" xlink:title="AuthorizedDividendToParentForRepurchaseOfAds" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsAbstract" xlink:to="loc_ctrp_AuthorizedDividendToParentForRepurchaseOfAds" xlink:title="Definition : loc_us-gaap_DividendsAbstract to loc_ctrp_AuthorizedDividendToParentForRepurchaseOfAds" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_ScheduleOfStatutoryReservesLineItems" xlink:to="loc_us-gaap_DividendsAbstract" xlink:title="Definition : loc_ctrp_ScheduleOfStatutoryReservesLineItems to loc_us-gaap_DividendsAbstract" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WithholdingForDividendsDistributedByForeignInvestedEnterpriseToHongKongSubsidiary" xlink:label="loc_ctrp_WithholdingForDividendsDistributedByForeignInvestedEnterpriseToHongKongSubsidiary" xlink:title="WithholdingForDividendsDistributedByForeignInvestedEnterpriseToHongKongSubsidiary" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsAbstract" xlink:to="loc_ctrp_WithholdingForDividendsDistributedByForeignInvestedEnterpriseToHongKongSubsidiary" xlink:title="Definition : loc_us-gaap_DividendsAbstract to loc_ctrp_WithholdingForDividendsDistributedByForeignInvestedEnterpriseToHongKongSubsidiary" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WithholdingTaxRateForDividendsDistributedByForeignInvestedEnterpriseToSatisfyCertainRequirementsSpecifiedByHongKongTaxAuthorities" xlink:label="loc_ctrp_WithholdingTaxRateForDividendsDistributedByForeignInvestedEnterpriseToSatisfyCertainRequirementsSpecifiedByHongKongTaxAuthorities" xlink:title="WithholdingTaxRateForDividendsDistributedByForeignInvestedEnterpriseToSatisfyCertainRequirementsSpecifiedByHongKongTaxAuthorities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsAbstract" xlink:to="loc_ctrp_WithholdingTaxRateForDividendsDistributedByForeignInvestedEnterpriseToSatisfyCertainRequirementsSpecifiedByHongKongTaxAuthorities" xlink:title="Definition : loc_us-gaap_DividendsAbstract to loc_ctrp_WithholdingTaxRateForDividendsDistributedByForeignInvestedEnterpriseToSatisfyCertainRequirementsSpecifiedByHongKongTaxAuthorities" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_CumulativeDividendsDistributedOutsideMainlandChina" xlink:label="loc_ctrp_CumulativeDividendsDistributedOutsideMainlandChina" xlink:title="CumulativeDividendsDistributedOutsideMainlandChina" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsAbstract" xlink:to="loc_ctrp_CumulativeDividendsDistributedOutsideMainlandChina" xlink:title="Definition : loc_us-gaap_DividendsAbstract to loc_ctrp_CumulativeDividendsDistributedOutsideMainlandChina" xlink:type="arc" use="optional" order="8001" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails7">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:title="FiniteLivedIntangibleAssetsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:title="ScheduleOfFiniteLivedIntangibleAssetsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsLineItems to loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember" xlink:title="RangeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis" xlink:to="loc_us-gaap_RangeMember" xlink:title="Definition : loc_us-gaap_RangeAxis to loc_us-gaap_RangeMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember" xlink:title="MinimumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MinimumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MinimumMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:to="loc_us-gaap_RangeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable to loc_us-gaap_RangeAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember" xlink:title="MaximumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MaximumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MaximumMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:title="FiniteLivedIntangibleAssetUsefulLife" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsLineItems to loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:type="arc" use="optional" order="2" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails8">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember" xlink:title="RangeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis" xlink:to="loc_us-gaap_RangeMember" xlink:title="Definition : loc_us-gaap_RangeAxis to loc_us-gaap_RangeMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis" xlink:title="PlanNameAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain" xlink:title="PlanNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis" xlink:to="loc_us-gaap_PlanNameDomain" xlink:title="Definition : loc_us-gaap_PlanNameAxis to loc_us-gaap_PlanNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis" xlink:title="AwardTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="Definition : loc_us-gaap_AwardTypeAxis to loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis to loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember" xlink:title="MinimumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MinimumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MinimumMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_Ctrip2005OptionPlanMember" xlink:label="loc_ctrp_Ctrip2005OptionPlanMember" xlink:title="Ctrip2005OptionPlanMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain" xlink:to="loc_ctrp_Ctrip2005OptionPlanMember" xlink:title="Definition : loc_us-gaap_PlanNameDomain to loc_ctrp_Ctrip2005OptionPlanMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember" xlink:title="EmployeeStockOptionMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_EmployeeStockOptionMember" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to loc_us-gaap_EmployeeStockOptionMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ExercisePriceOverUsd120Member" xlink:label="loc_ctrp_ExercisePriceOverUsd120Member" xlink:title="ExercisePriceOverUsd120Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="loc_ctrp_ExercisePriceOverUsd120Member" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to loc_ctrp_ExercisePriceOverUsd120Member" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaap_PlanNameAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to loc_us-gaap_PlanNameAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="PlanNameDomain_1" xlink:title="PlanNameDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis" xlink:to="PlanNameDomain_1" xlink:title="Definition : loc_us-gaap_PlanNameAxis to loc_us-gaap_PlanNameDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2" xlink:title="Definition : loc_us-gaap_AwardTypeAxis to loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_3" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_3" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis to loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember" xlink:title="MaximumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MaximumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MaximumMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_Ctrip2007IncentivePlanMember" xlink:label="loc_ctrp_Ctrip2007IncentivePlanMember" xlink:title="Ctrip2007IncentivePlanMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain" xlink:to="loc_ctrp_Ctrip2007IncentivePlanMember" xlink:title="Definition : loc_us-gaap_PlanNameDomain to loc_ctrp_Ctrip2007IncentivePlanMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:title="RestrictedStockUnitsRSUMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaap_AwardTypeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to loc_us-gaap_AwardTypeAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaap_RangeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to loc_us-gaap_RangeAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AnnualIncreaseOfNumberOfOrdinarySharesReservedUnderShareIncentivePlans" xlink:label="loc_ctrp_AnnualIncreaseOfNumberOfOrdinarySharesReservedUnderShareIncentivePlans" xlink:title="AnnualIncreaseOfNumberOfOrdinarySharesReservedUnderShareIncentivePlans" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_AnnualIncreaseOfNumberOfOrdinarySharesReservedUnderShareIncentivePlans" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_AnnualIncreaseOfNumberOfOrdinarySharesReservedUnderShareIncentivePlans" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRestrictionPeriod" xlink:label="loc_ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRestrictionPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRestrictionPeriod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRestrictionPeriod" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRestrictionPeriod" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AmountOfOptionsModified" xlink:label="loc_ctrp_AmountOfOptionsModified" xlink:title="AmountOfOptionsModified" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_AmountOfOptionsModified" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_AmountOfOptionsModified" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationUnrecognizedCompensationCost" xlink:label="loc_ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationUnrecognizedCompensationCost" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationUnrecognizedCompensationCost" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationUnrecognizedCompensationCost" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationUnrecognizedCompensationCost" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ModifiedOptionsVestingPeriod" xlink:label="loc_ctrp_ModifiedOptionsVestingPeriod" xlink:title="ModifiedOptionsVestingPeriod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_ModifiedOptionsVestingPeriod" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_ModifiedOptionsVestingPeriod" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AmountOfUnvestedOptionsModified" xlink:label="loc_ctrp_AmountOfUnvestedOptionsModified" xlink:title="AmountOfUnvestedOptionsModified" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_AmountOfUnvestedOptionsModified" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_AmountOfUnvestedOptionsModified" xlink:type="arc" use="optional" order="11" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AmountOfVestedOptionsModified" xlink:label="loc_ctrp_AmountOfVestedOptionsModified" xlink:title="AmountOfVestedOptionsModified" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_AmountOfVestedOptionsModified" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_AmountOfVestedOptionsModified" xlink:type="arc" use="optional" order="12" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:type="arc" use="optional" order="13" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:type="arc" use="optional" order="14" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EquityUnitsOtherThanOptionsConversionRatio" xlink:label="loc_ctrp_EquityUnitsOtherThanOptionsConversionRatio" xlink:title="EquityUnitsOtherThanOptionsConversionRatio" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_EquityUnitsOtherThanOptionsConversionRatio" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_EquityUnitsOtherThanOptionsConversionRatio" xlink:type="arc" use="optional" order="15" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AmountOfOptionsModifiedIntoRestrictedShareUnits" xlink:label="loc_ctrp_AmountOfOptionsModifiedIntoRestrictedShareUnits" xlink:title="AmountOfOptionsModifiedIntoRestrictedShareUnits" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_AmountOfOptionsModifiedIntoRestrictedShareUnits" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_AmountOfOptionsModifiedIntoRestrictedShareUnits" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NumberOfRestrictedShareUnitsIntoWhichOptionsAreModified" xlink:label="loc_ctrp_NumberOfRestrictedShareUnitsIntoWhichOptionsAreModified" xlink:title="NumberOfRestrictedShareUnitsIntoWhichOptionsAreModified" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_NumberOfRestrictedShareUnitsIntoWhichOptionsAreModified" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_NumberOfRestrictedShareUnitsIntoWhichOptionsAreModified" xlink:type="arc" use="optional" order="8001" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails4">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems" xlink:title="PropertyPlantAndEquipmentLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="ScheduleOfPropertyPlantAndEquipmentTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentLineItems to loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember" xlink:title="RangeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis" xlink:to="loc_us-gaap_RangeMember" xlink:title="Definition : loc_us-gaap_RangeAxis to loc_us-gaap_RangeMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis to loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember" xlink:title="MinimumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MinimumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MinimumMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember" xlink:title="BuildingMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaap_BuildingMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_us-gaap_BuildingMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable to loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember" xlink:title="MaximumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MaximumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MaximumMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WebsiteRelatedEquipmentMember" xlink:label="loc_ctrp_WebsiteRelatedEquipmentMember" xlink:title="WebsiteRelatedEquipmentMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_ctrp_WebsiteRelatedEquipmentMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_ctrp_WebsiteRelatedEquipmentMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:title="PropertyPlantAndEquipmentUsefulLife" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentLineItems to loc_us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaap_RangeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable to loc_us-gaap_RangeAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComputerEquipmentMember" xlink:label="loc_us-gaap_ComputerEquipmentMember" xlink:title="ComputerEquipmentMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaap_ComputerEquipmentMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_us-gaap_ComputerEquipmentMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember" xlink:title="FurnitureAndFixturesMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaap_FurnitureAndFixturesMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_us-gaap_FurnitureAndFixturesMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:title="SoftwareAndSoftwareDevelopmentCostsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:type="arc" use="optional" order="5" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails11">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember" xlink:title="RangeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis" xlink:to="loc_us-gaap_RangeMember" xlink:title="Definition : loc_us-gaap_RangeAxis to loc_us-gaap_RangeMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember" xlink:title="MinimumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MinimumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MinimumMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaap_RangeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to loc_us-gaap_RangeAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember" xlink:title="MaximumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MaximumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MaximumMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:title="SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:type="arc" use="optional" order="9" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureTaxationDetails">
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaxRateDisclosureLineItems" xlink:label="loc_ctrp_TaxRateDisclosureLineItems" xlink:title="TaxRateDisclosureLineItems" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaxRateDisclosureTable" xlink:label="loc_ctrp_TaxRateDisclosureTable" xlink:title="TaxRateDisclosureTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_TaxRateDisclosureTable" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_TaxRateDisclosureTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis" xlink:title="LegalEntityAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain" xlink:title="EntityDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis" xlink:to="loc_dei_EntityDomain" xlink:title="Definition : loc_dei_LegalEntityAxis to loc_dei_EntityDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis" xlink:title="StatementGeographicalAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain" xlink:title="SegmentGeographicalDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis" xlink:to="loc_us-gaap_SegmentGeographicalDomain" xlink:title="Definition : loc_us-gaap_StatementGeographicalAxis to loc_us-gaap_SegmentGeographicalDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis" xlink:title="IncomeTaxAuthorityAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain" xlink:title="IncomeTaxAuthorityDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain" xlink:title="Definition : loc_us-gaap_IncomeTaxAuthorityAxis to loc_us-gaap_IncomeTaxAuthorityDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EntityClassificationsSectorAndEntityAxis" xlink:label="loc_ctrp_EntityClassificationsSectorAndEntityAxis" xlink:title="EntityClassificationsSectorAndEntityAxis" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_SectorAndEntityDomain" xlink:label="loc_ctrp_SectorAndEntityDomain" xlink:title="SectorAndEntityDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ctrp_EntityClassificationsSectorAndEntityAxis" xlink:to="loc_ctrp_SectorAndEntityDomain" xlink:title="Definition : loc_ctrp_EntityClassificationsSectorAndEntityAxis to loc_ctrp_SectorAndEntityDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaxPeriodAxis" xlink:label="loc_ctrp_TaxPeriodAxis" xlink:title="TaxPeriodAxis" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaxPeriodDomain" xlink:label="loc_ctrp_TaxPeriodDomain" xlink:title="TaxPeriodDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ctrp_TaxPeriodAxis" xlink:to="loc_ctrp_TaxPeriodDomain" xlink:title="Definition : loc_ctrp_TaxPeriodAxis to loc_ctrp_TaxPeriodDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_CtripComputerTechnologyMember" xlink:label="loc_ctrp_CtripComputerTechnologyMember" xlink:title="CtripComputerTechnologyMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_CtripComputerTechnologyMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_CtripComputerTechnologyMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShenzhenMember" xlink:label="loc_ctrp_ShenzhenMember" xlink:title="ShenzhenMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain" xlink:to="loc_ctrp_ShenzhenMember" xlink:title="Definition : loc_us-gaap_SegmentGeographicalDomain to loc_ctrp_ShenzhenMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HongKongProfitsTaxMember" xlink:label="loc_ctrp_HongKongProfitsTaxMember" xlink:title="HongKongProfitsTaxMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain" xlink:to="loc_ctrp_HongKongProfitsTaxMember" xlink:title="Definition : loc_us-gaap_IncomeTaxAuthorityDomain to loc_ctrp_HongKongProfitsTaxMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HighNewTechEnterprisesMember" xlink:label="loc_ctrp_HighNewTechEnterprisesMember" xlink:title="HighNewTechEnterprisesMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_SectorAndEntityDomain" xlink:to="loc_ctrp_HighNewTechEnterprisesMember" xlink:title="Definition : loc_ctrp_SectorAndEntityDomain to loc_ctrp_HighNewTechEnterprisesMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaxPeriod2012To2014Member" xlink:label="loc_ctrp_TaxPeriod2012To2014Member" xlink:title="TaxPeriod2012To2014Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxPeriodDomain" xlink:to="loc_ctrp_TaxPeriod2012To2014Member" xlink:title="Definition : loc_ctrp_TaxPeriodDomain to loc_ctrp_TaxPeriod2012To2014Member" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ctrp_TaxRateDisclosureTable" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis" xlink:title="Definition : loc_ctrp_TaxRateDisclosureTable to loc_us-gaap_IncomeTaxAuthorityAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityDomain" xlink:label="EntityDomain_1" xlink:title="EntityDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis" xlink:to="EntityDomain_1" xlink:title="Definition : loc_dei_LegalEntityAxis to loc_dei_EntityDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="SegmentGeographicalDomain_2" xlink:title="SegmentGeographicalDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementGeographicalAxis" xlink:to="SegmentGeographicalDomain_2" xlink:title="Definition : loc_us-gaap_StatementGeographicalAxis to loc_us-gaap_SegmentGeographicalDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="IncomeTaxAuthorityDomain_3" xlink:title="IncomeTaxAuthorityDomain_3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis" xlink:to="IncomeTaxAuthorityDomain_3" xlink:title="Definition : loc_us-gaap_IncomeTaxAuthorityAxis to loc_us-gaap_IncomeTaxAuthorityDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_SectorAndEntityDomain" xlink:label="SectorAndEntityDomain_4" xlink:title="SectorAndEntityDomain_4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ctrp_EntityClassificationsSectorAndEntityAxis" xlink:to="SectorAndEntityDomain_4" xlink:title="Definition : loc_ctrp_EntityClassificationsSectorAndEntityAxis to loc_ctrp_SectorAndEntityDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaxPeriodDomain" xlink:label="TaxPeriodDomain_5" xlink:title="TaxPeriodDomain_5" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ctrp_TaxPeriodAxis" xlink:to="TaxPeriodDomain_5" xlink:title="Definition : loc_ctrp_TaxPeriodAxis to loc_ctrp_TaxPeriodDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_CtripTravelInformationMember" xlink:label="loc_ctrp_CtripTravelInformationMember" xlink:title="CtripTravelInformationMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_CtripTravelInformationMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_CtripTravelInformationMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WesternRegionOfChinaMember" xlink:label="loc_ctrp_WesternRegionOfChinaMember" xlink:title="WesternRegionOfChinaMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain" xlink:to="loc_ctrp_WesternRegionOfChinaMember" xlink:title="Definition : loc_us-gaap_SegmentGeographicalDomain to loc_ctrp_WesternRegionOfChinaMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaiwanEnterpriseIncomeTaxMember" xlink:label="loc_ctrp_TaiwanEnterpriseIncomeTaxMember" xlink:title="TaiwanEnterpriseIncomeTaxMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain" xlink:to="loc_ctrp_TaiwanEnterpriseIncomeTaxMember" xlink:title="Definition : loc_us-gaap_IncomeTaxAuthorityDomain to loc_ctrp_TaiwanEnterpriseIncomeTaxMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaxPeriod2013To2016Member" xlink:label="loc_ctrp_TaxPeriod2013To2016Member" xlink:title="TaxPeriod2013To2016Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxPeriodDomain" xlink:to="loc_ctrp_TaxPeriod2013To2016Member" xlink:title="Definition : loc_ctrp_TaxPeriodDomain to loc_ctrp_TaxPeriod2013To2016Member" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:title="EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ctrp_TaxRateDisclosureTable" xlink:to="loc_ctrp_EntityClassificationsSectorAndEntityAxis" xlink:title="Definition : loc_ctrp_TaxRateDisclosureTable to loc_ctrp_EntityClassificationsSectorAndEntityAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_CtripTravelNetworkMember" xlink:label="loc_ctrp_CtripTravelNetworkMember" xlink:title="CtripTravelNetworkMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_CtripTravelNetworkMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_CtripTravelNetworkMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PRCCorporateIncomeTaxMember" xlink:label="loc_ctrp_PRCCorporateIncomeTaxMember" xlink:title="PRCCorporateIncomeTaxMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain" xlink:to="loc_ctrp_PRCCorporateIncomeTaxMember" xlink:title="Definition : loc_us-gaap_IncomeTaxAuthorityDomain to loc_ctrp_PRCCorporateIncomeTaxMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaxRateApprovedForFutureTaxPeriod" xlink:label="loc_ctrp_TaxRateApprovedForFutureTaxPeriod" xlink:title="TaxRateApprovedForFutureTaxPeriod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_TaxRateApprovedForFutureTaxPeriod" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_TaxRateApprovedForFutureTaxPeriod" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ctrp_TaxRateDisclosureTable" xlink:to="loc_us-gaap_StatementGeographicalAxis" xlink:title="Definition : loc_ctrp_TaxRateDisclosureTable to loc_us-gaap_StatementGeographicalAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_SoftwareHotelInformationMember" xlink:label="loc_ctrp_SoftwareHotelInformationMember" xlink:title="SoftwareHotelInformationMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_SoftwareHotelInformationMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_SoftwareHotelInformationMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_QualificationEffectivePeriod" xlink:label="loc_ctrp_QualificationEffectivePeriod" xlink:title="QualificationEffectivePeriod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_QualificationEffectivePeriod" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_QualificationEffectivePeriod" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ctrp_TaxRateDisclosureTable" xlink:to="loc_dei_LegalEntityAxis" xlink:title="Definition : loc_ctrp_TaxRateDisclosureTable to loc_dei_LegalEntityAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShenzhenCtripTravelAgencyCoLtdShenzhenCtripMember" xlink:label="loc_ctrp_ShenzhenCtripTravelAgencyCoLtdShenzhenCtripMember" xlink:title="ShenzhenCtripTravelAgencyCoLtdShenzhenCtripMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_ShenzhenCtripTravelAgencyCoLtdShenzhenCtripMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_ShenzhenCtripTravelAgencyCoLtdShenzhenCtripMember" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NumberOfEntitiesApprovedForPreferentialTaxRate" xlink:label="loc_ctrp_NumberOfEntitiesApprovedForPreferentialTaxRate" xlink:title="NumberOfEntitiesApprovedForPreferentialTaxRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_NumberOfEntitiesApprovedForPreferentialTaxRate" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_NumberOfEntitiesApprovedForPreferentialTaxRate" xlink:type="arc" use="optional" order="5" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ctrp_TaxRateDisclosureTable" xlink:to="loc_ctrp_TaxPeriodAxis" xlink:title="Definition : loc_ctrp_TaxRateDisclosureTable to loc_ctrp_TaxPeriodAxis" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ChengduCtripMember" xlink:label="loc_ctrp_ChengduCtripMember" xlink:title="ChengduCtripMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_ChengduCtripMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_ChengduCtripMember" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_StatutoryIncomeTaxRateReductionRate" xlink:label="loc_ctrp_StatutoryIncomeTaxRateReductionRate" xlink:title="StatutoryIncomeTaxRateReductionRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_StatutoryIncomeTaxRateReductionRate" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_StatutoryIncomeTaxRateReductionRate" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ChengduCtripInternationalMember" xlink:label="loc_ctrp_ChengduCtripInternationalMember" xlink:title="ChengduCtripInternationalMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_ChengduCtripInternationalMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_ChengduCtripInternationalMember" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WithholdingTax" xlink:label="loc_ctrp_WithholdingTax" xlink:title="WithholdingTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_WithholdingTax" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_WithholdingTax" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ChengduInformationTechnologyMember" xlink:label="loc_ctrp_ChengduInformationTechnologyMember" xlink:title="ChengduInformationTechnologyMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_ChengduInformationTechnologyMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_ChengduInformationTechnologyMember" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DeferredTaxLiabilityProvidedOnOutsideBasisDifferenceFromUndistributedEarnings" xlink:label="loc_ctrp_DeferredTaxLiabilityProvidedOnOutsideBasisDifferenceFromUndistributedEarnings" xlink:title="DeferredTaxLiabilityProvidedOnOutsideBasisDifferenceFromUndistributedEarnings" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_DeferredTaxLiabilityProvidedOnOutsideBasisDifferenceFromUndistributedEarnings" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_DeferredTaxLiabilityProvidedOnOutsideBasisDifferenceFromUndistributedEarnings" xlink:type="arc" use="optional" order="8" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureTaxationDetails2">
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaxRateDisclosureLineItems" xlink:label="loc_ctrp_TaxRateDisclosureLineItems" xlink:title="TaxRateDisclosureLineItems" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TaxRateDisclosureTable" xlink:label="loc_ctrp_TaxRateDisclosureTable" xlink:title="TaxRateDisclosureTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_TaxRateDisclosureTable" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_TaxRateDisclosureTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis" xlink:title="StatementGeographicalAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain" xlink:title="SegmentGeographicalDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementGeographicalAxis" xlink:to="loc_us-gaap_SegmentGeographicalDomain" xlink:title="Definition : loc_us-gaap_StatementGeographicalAxis to loc_us-gaap_SegmentGeographicalDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd#country_CN" xlink:label="loc_country_CN" xlink:title="CN" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentGeographicalDomain" xlink:to="loc_country_CN" xlink:title="Definition : loc_us-gaap_SegmentGeographicalDomain to loc_country_CN" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ctrp_TaxRateDisclosureTable" xlink:to="loc_us-gaap_StatementGeographicalAxis" xlink:title="Definition : loc_ctrp_TaxRateDisclosureTable to loc_us-gaap_StatementGeographicalAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AuthorizedDividendToParentForRepurchaseOfAds" xlink:label="loc_ctrp_AuthorizedDividendToParentForRepurchaseOfAds" xlink:title="AuthorizedDividendToParentForRepurchaseOfAds" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_AuthorizedDividendToParentForRepurchaseOfAds" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_AuthorizedDividendToParentForRepurchaseOfAds" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WithholdingTax" xlink:label="loc_ctrp_WithholdingTax" xlink:title="WithholdingTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_WithholdingTax" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_WithholdingTax" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WithholdingForDividendsDistributedByForeignInvestedEnterpriseToHongKongSubsidiary" xlink:label="loc_ctrp_WithholdingForDividendsDistributedByForeignInvestedEnterpriseToHongKongSubsidiary" xlink:title="WithholdingForDividendsDistributedByForeignInvestedEnterpriseToHongKongSubsidiary" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_WithholdingForDividendsDistributedByForeignInvestedEnterpriseToHongKongSubsidiary" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_WithholdingForDividendsDistributedByForeignInvestedEnterpriseToHongKongSubsidiary" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_UndistributedEarningsOfForeignSubsidiaries" xlink:label="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries" xlink:title="UndistributedEarningsOfForeignSubsidiaries" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DeferredTaxLiabilityProvidedOnOutsideBasisDifferenceForRemainingUndistributedEarnings" xlink:label="loc_ctrp_DeferredTaxLiabilityProvidedOnOutsideBasisDifferenceForRemainingUndistributedEarnings" xlink:title="DeferredTaxLiabilityProvidedOnOutsideBasisDifferenceForRemainingUndistributedEarnings" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TaxRateDisclosureLineItems" xlink:to="loc_ctrp_DeferredTaxLiabilityProvidedOnOutsideBasisDifferenceForRemainingUndistributedEarnings" xlink:title="Definition : loc_ctrp_TaxRateDisclosureLineItems to loc_ctrp_DeferredTaxLiabilityProvidedOnOutsideBasisDifferenceForRemainingUndistributedEarnings" xlink:type="arc" order="6" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails5">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:title="ScheduleOfInvestmentsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:title="ScheduleOfInvestmentsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_ScheduleOfInvestmentsTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:title="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:title="DisposalGroupsIncludingDiscontinuedOperationsNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:title="Definition : loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis to loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="loc_us-gaap_RelatedPartyDomain" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis to loc_us-gaap_RelatedPartyDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_StarwayHongKongMember" xlink:label="loc_ctrp_StarwayHongKongMember" xlink:title="StarwayHongKongMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:to="loc_ctrp_StarwayHongKongMember" xlink:title="Definition : loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain to loc_ctrp_StarwayHongKongMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HantingMember" xlink:label="loc_ctrp_HantingMember" xlink:title="HantingMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_HantingMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_HantingMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:label="loc_ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:title="ZhongAnOnlinePropertyInsuranceCoLtdMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:label="loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:title="KeystoneLodgingHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="BusinessAcquisitionPercentageOfVotingInterestsAcquired" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:label="loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:title="ShanghaiYishangNetworkTechnologyCoLtdMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:title="MinorityInterestOwnershipPercentageByNoncontrollingOwners" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:title="MinorityInterestOwnershipPercentageByParent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross" xlink:title="PaymentsToAcquireBusinessesGross" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_PaymentsToAcquireBusinessesGross" xlink:type="arc" use="optional" order="5" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_VariableInterestEntityLineItems" xlink:label="loc_us-gaap_VariableInterestEntityLineItems" xlink:title="VariableInterestEntityLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:label="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:title="ScheduleOfVariableInterestEntitiesTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="loc_us-gaap_RelatedPartyDomain" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis to loc_us-gaap_RelatedPartyDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:label="loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:title="VariableInterestEntitiesByClassificationOfEntityAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:label="loc_us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:title="ClassificationOfVariableInterestEntityDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:to="loc_us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:title="Definition : loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis to loc_us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TwoOfficersMember" xlink:label="loc_ctrp_TwoOfficersMember" xlink:title="TwoOfficersMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_TwoOfficersMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_TwoOfficersMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:title="VariableInterestEntityPrimaryBeneficiaryMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:title="Definition : loc_us-gaap_ClassificationOfVariableInterestEntityDomain to loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShanghaiCtripCommerceCoLtdShanghaiCtripCommerceMember" xlink:label="loc_ctrp_ShanghaiCtripCommerceCoLtdShanghaiCtripCommerceMember" xlink:title="ShanghaiCtripCommerceCoLtdShanghaiCtripCommerceMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="loc_ctrp_ShanghaiCtripCommerceCoLtdShanghaiCtripCommerceMember" xlink:title="Definition : loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember to loc_ctrp_ShanghaiCtripCommerceCoLtdShanghaiCtripCommerceMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:to="loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfVariableInterestEntitiesTable to loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:label="ClassificationOfVariableInterestEntityDomain_1" xlink:title="ClassificationOfVariableInterestEntityDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:to="ClassificationOfVariableInterestEntityDomain_1" xlink:title="Definition : loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis to loc_us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShanghaiCtripCommerceAndOneSeniorOfficerOfCtripComInternationalLtdMember" xlink:label="loc_ctrp_ShanghaiCtripCommerceAndOneSeniorOfficerOfCtripComInternationalLtdMember" xlink:title="ShanghaiCtripCommerceAndOneSeniorOfficerOfCtripComInternationalLtdMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_ShanghaiCtripCommerceAndOneSeniorOfficerOfCtripComInternationalLtdMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_ShanghaiCtripCommerceAndOneSeniorOfficerOfCtripComInternationalLtdMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShanghaiHuachengSouthwestTravelAgencyCoLtdShanghaiHuachengMember" xlink:label="loc_ctrp_ShanghaiHuachengSouthwestTravelAgencyCoLtdShanghaiHuachengMember" xlink:title="ShanghaiHuachengSouthwestTravelAgencyCoLtdShanghaiHuachengMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="loc_ctrp_ShanghaiHuachengSouthwestTravelAgencyCoLtdShanghaiHuachengMember" xlink:title="Definition : loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember to loc_ctrp_ShanghaiHuachengSouthwestTravelAgencyCoLtdShanghaiHuachengMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NumberOfOfficers" xlink:label="loc_ctrp_NumberOfOfficers" xlink:title="NumberOfOfficers" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_NumberOfOfficers" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_NumberOfOfficers" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfVariableInterestEntitiesTable to loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_OneOfficerMember" xlink:label="loc_ctrp_OneOfficerMember" xlink:title="OneOfficerMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_OneOfficerMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_OneOfficerMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BeijingCtripInternationalTravelAgencyCoLtdBeijingCtripMember" xlink:label="loc_ctrp_BeijingCtripInternationalTravelAgencyCoLtdBeijingCtripMember" xlink:title="BeijingCtripInternationalTravelAgencyCoLtdBeijingCtripMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="loc_ctrp_BeijingCtripInternationalTravelAgencyCoLtdBeijingCtripMember" xlink:title="Definition : loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember to loc_ctrp_BeijingCtripInternationalTravelAgencyCoLtdBeijingCtripMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_VariableInterestEntityOwnershipPercentage" xlink:label="loc_us-gaap_VariableInterestEntityOwnershipPercentage" xlink:title="VariableInterestEntityOwnershipPercentage" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_VariableInterestEntityOwnershipPercentage" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_VariableInterestEntityOwnershipPercentage" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShanghaiCtripCommerceAndCtripComputerTechnologyMember" xlink:label="loc_ctrp_ShanghaiCtripCommerceAndCtripComputerTechnologyMember" xlink:title="ShanghaiCtripCommerceAndCtripComputerTechnologyMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_ShanghaiCtripCommerceAndCtripComputerTechnologyMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_ShanghaiCtripCommerceAndCtripComputerTechnologyMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_GuangzhouCtripInternationalTravelAgencyCoLtdGuangzhouCtripMember" xlink:label="loc_ctrp_GuangzhouCtripInternationalTravelAgencyCoLtdGuangzhouCtripMember" xlink:title="GuangzhouCtripInternationalTravelAgencyCoLtdGuangzhouCtripMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="loc_ctrp_GuangzhouCtripInternationalTravelAgencyCoLtdGuangzhouCtripMember" xlink:title="Definition : loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember to loc_ctrp_GuangzhouCtripInternationalTravelAgencyCoLtdGuangzhouCtripMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RegisteredCapitalOfVie" xlink:label="loc_ctrp_RegisteredCapitalOfVie" xlink:title="RegisteredCapitalOfVie" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_RegisteredCapitalOfVie" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_RegisteredCapitalOfVie" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_ShanghaiCtripCommerceCoLtdShanghaiCtripCommerceMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_ShanghaiCtripCommerceCoLtdShanghaiCtripCommerceMember" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShanghaiCtripInternationalTravelAgencyCoLtdShanghaiCtripFormerlyShanghaiCtripCharmingInternationalTravelAgencyCoLtdMember" xlink:label="loc_ctrp_ShanghaiCtripInternationalTravelAgencyCoLtdShanghaiCtripFormerlyShanghaiCtripCharmingInternationalTravelAgencyCoLtdMember" xlink:title="ShanghaiCtripInternationalTravelAgencyCoLtdShanghaiCtripFormerlyShanghaiCtripCharmingInternationalTravelAgencyCoLtdMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="loc_ctrp_ShanghaiCtripInternationalTravelAgencyCoLtdShanghaiCtripFormerlyShanghaiCtripCharmingInternationalTravelAgencyCoLtdMember" xlink:title="Definition : loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember to loc_ctrp_ShanghaiCtripInternationalTravelAgencyCoLtdShanghaiCtripFormerlyShanghaiCtripCharmingInternationalTravelAgencyCoLtdMember" xlink:type="arc" use="optional" order="5" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_ShanghaiCtripInternationalTravelAgencyCoLtdShanghaiCtripFormerlyShanghaiCtripCharmingInternationalTravelAgencyCoLtdMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_ShanghaiCtripInternationalTravelAgencyCoLtdShanghaiCtripFormerlyShanghaiCtripCharmingInternationalTravelAgencyCoLtdMember" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShenzhenCtripTravelAgencyCoLtdShenzhenCtripMember" xlink:label="loc_ctrp_ShenzhenCtripTravelAgencyCoLtdShenzhenCtripMember" xlink:title="ShenzhenCtripTravelAgencyCoLtdShenzhenCtripMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="loc_ctrp_ShenzhenCtripTravelAgencyCoLtdShenzhenCtripMember" xlink:title="Definition : loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember to loc_ctrp_ShenzhenCtripTravelAgencyCoLtdShenzhenCtripMember" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_CtripInsuranceAgencyCoLtdCtripInsuranceMember" xlink:label="loc_ctrp_CtripInsuranceAgencyCoLtdCtripInsuranceMember" xlink:title="CtripInsuranceAgencyCoLtdCtripInsuranceMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="loc_ctrp_CtripInsuranceAgencyCoLtdCtripInsuranceMember" xlink:title="Definition : loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember to loc_ctrp_CtripInsuranceAgencyCoLtdCtripInsuranceMember" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ChengduCtripTravelAgencyCoLtdChengduCtripMember" xlink:label="loc_ctrp_ChengduCtripTravelAgencyCoLtdChengduCtripMember" xlink:title="ChengduCtripTravelAgencyCoLtdChengduCtripMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="loc_ctrp_ChengduCtripTravelAgencyCoLtdChengduCtripMember" xlink:title="Definition : loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember to loc_ctrp_ChengduCtripTravelAgencyCoLtdChengduCtripMember" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ChengduCtripInternationalTravelAgencyCoLtdChengduCtripInternationalMember" xlink:label="loc_ctrp_ChengduCtripInternationalTravelAgencyCoLtdChengduCtripInternationalMember" xlink:title="ChengduCtripInternationalTravelAgencyCoLtdChengduCtripInternationalMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="loc_ctrp_ChengduCtripInternationalTravelAgencyCoLtdChengduCtripInternationalMember" xlink:title="Definition : loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember to loc_ctrp_ChengduCtripInternationalTravelAgencyCoLtdChengduCtripInternationalMember" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember" xlink:label="loc_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember" xlink:title="ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NantongTongchengInformationTechnologyCoLtdNantongTongchengMember" xlink:label="loc_ctrp_NantongTongchengInformationTechnologyCoLtdNantongTongchengMember" xlink:title="NantongTongchengInformationTechnologyCoLtdNantongTongchengMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="loc_ctrp_NantongTongchengInformationTechnologyCoLtdNantongTongchengMember" xlink:title="Definition : loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember to loc_ctrp_NantongTongchengInformationTechnologyCoLtdNantongTongchengMember" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TermOfPowerOfAttorney" xlink:label="loc_ctrp_TermOfPowerOfAttorney" xlink:title="TermOfPowerOfAttorney" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_TermOfPowerOfAttorney" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_TermOfPowerOfAttorney" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TermOfBusinessLoanAgreements" xlink:label="loc_ctrp_TermOfBusinessLoanAgreements" xlink:title="TermOfBusinessLoanAgreements" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_TermOfBusinessLoanAgreements" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_TermOfBusinessLoanAgreements" xlink:type="arc" use="optional" order="8001" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureFairValueMeasurementDetails2">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:title="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:title="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems to loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:title="FairValueByFairValueHierarchyLevelAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:title="FairValueMeasurementsFairValueHierarchyDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:title="Definition : loc_us-gaap_FairValueByFairValueHierarchyLevelAxis to loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerAxis" xlink:label="loc_invest_InvestmentIssuerAxis" xlink:title="InvestmentIssuerAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="loc_invest_InvestmentIssuerDomain" xlink:title="InvestmentIssuerDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_invest_InvestmentIssuerAxis" xlink:to="loc_invest_InvestmentIssuerDomain" xlink:title="Definition : loc_invest_InvestmentIssuerAxis to loc_invest_InvestmentIssuerDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueByAssetClassAxis" xlink:label="loc_us-gaap_FairValueByAssetClassAxis" xlink:title="FairValueByAssetClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:title="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByAssetClassAxis" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:title="Definition : loc_us-gaap_FairValueByAssetClassAxis to loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member" xlink:title="FairValueInputsLevel3Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="loc_us-gaap_FairValueInputsLevel3Member" xlink:title="Definition : loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain to loc_us-gaap_FairValueInputsLevel3Member" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EHiAutoServicesLimitedMember" xlink:label="loc_ctrp_EHiAutoServicesLimitedMember" xlink:title="EHiAutoServicesLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EHiAutoServicesLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EHiAutoServicesLimitedMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="loc_us-gaap_SeriesAPreferredStockMember" xlink:title="SeriesAPreferredStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_us-gaap_SeriesAPreferredStockMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_us-gaap_SeriesAPreferredStockMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AvailableforsaleSecuritiesMember" xlink:label="loc_us-gaap_AvailableforsaleSecuritiesMember" xlink:title="AvailableforsaleSecuritiesMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:to="loc_us-gaap_AvailableforsaleSecuritiesMember" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain to loc_us-gaap_AvailableforsaleSecuritiesMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:title="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:title="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward to loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:to="loc_us-gaap_FairValueByAssetClassAxis" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable to loc_us-gaap_FairValueByAssetClassAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_1" xlink:title="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByAssetClassAxis" xlink:to="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_1" xlink:title="Definition : loc_us-gaap_FairValueByAssetClassAxis to loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EasyGoIncMember" xlink:label="loc_ctrp_EasyGoIncMember" xlink:title="EasyGoIncMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EasyGoIncMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EasyGoIncMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="loc_us-gaap_SeriesBPreferredStockMember" xlink:title="SeriesBPreferredStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_us-gaap_SeriesBPreferredStockMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_us-gaap_SeriesBPreferredStockMember" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems to loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquireInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments" xlink:title="PaymentsToAcquireInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward to loc_us-gaap_PaymentsToAcquireInvestments" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:to="loc_invest_InvestmentIssuerAxis" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable to loc_invest_InvestmentIssuerAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DiningSecretaryMember" xlink:label="loc_ctrp_DiningSecretaryMember" xlink:title="DiningSecretaryMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_DiningSecretaryMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_DiningSecretaryMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SeriesEPreferredStockMember" xlink:label="loc_us-gaap_SeriesEPreferredStockMember" xlink:title="SeriesEPreferredStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_us-gaap_SeriesEPreferredStockMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_us-gaap_SeriesEPreferredStockMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdjustmentForLongTermIntercompanyTransactionsNetOfTax" xlink:label="loc_us-gaap_AdjustmentForLongTermIntercompanyTransactionsNetOfTax" xlink:title="AdjustmentForLongTermIntercompanyTransactionsNetOfTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="loc_us-gaap_AdjustmentForLongTermIntercompanyTransactionsNetOfTax" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward to loc_us-gaap_AdjustmentForLongTermIntercompanyTransactionsNetOfTax" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable to loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HappyCityHoldingsLimitedMember" xlink:label="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="HappyCityHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_HappyCityHoldingsLimitedMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xlink:title="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward to loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xlink:title="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward to loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xlink:type="arc" use="optional" order="8000" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails10">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:title="ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems to loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis to loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_From2300To3499Member" xlink:label="loc_ctrp_From2300To3499Member" xlink:title="From2300To3499Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="loc_ctrp_From2300To3499Member" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to loc_ctrp_From2300To3499Member" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable to loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_From3500To4499Member" xlink:label="loc_ctrp_From3500To4499Member" xlink:title="From3500To4499Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="loc_ctrp_From3500To4499Member" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to loc_ctrp_From3500To4499Member" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems to loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:title="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract to loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_From4500To5899Member" xlink:label="loc_ctrp_From4500To5899Member" xlink:title="From4500To5899Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="loc_ctrp_From4500To5899Member" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to loc_ctrp_From4500To5899Member" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xlink:title="SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems to loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:title="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract to loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_From5900To7799Member" xlink:label="loc_ctrp_From5900To7799Member" xlink:title="From5900To7799Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="loc_ctrp_From5900To7799Member" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to loc_ctrp_From5900To7799Member" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:title="SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems to loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions" xlink:title="EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract to loc_us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_From7800To9699Member" xlink:label="loc_ctrp_From7800To9699Member" xlink:title="From7800To9699Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="loc_ctrp_From7800To9699Member" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to loc_ctrp_From7800To9699Member" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems to loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_From9700To12999Member" xlink:label="loc_ctrp_From9700To12999Member" xlink:title="From9700To12999Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="loc_ctrp_From9700To12999Member" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to loc_ctrp_From9700To12999Member" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" xlink:title="SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems to loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_From13000To15999Member" xlink:label="loc_ctrp_From13000To15999Member" xlink:title="From13000To15999Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="loc_ctrp_From13000To15999Member" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to loc_ctrp_From13000To15999Member" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2" xlink:title="SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems to loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2" xlink:type="arc" use="optional" order="7" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_From1700To2299Member" xlink:label="loc_ctrp_From1700To2299Member" xlink:title="From1700To2299Member" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="loc_ctrp_From1700To2299Member" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to loc_ctrp_From1700To2299Member" xlink:type="arc" use="optional" order="8000" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePropertyEquipmentAndSoftwareDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems" xlink:title="PropertyPlantAndEquipmentLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="ScheduleOfPropertyPlantAndEquipmentTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentLineItems to loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis to loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember" xlink:title="BuildingMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaap_BuildingMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_us-gaap_BuildingMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable to loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain_1" xlink:title="PropertyPlantAndEquipmentTypeDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain_1" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis to loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComputerEquipmentMember" xlink:label="loc_us-gaap_ComputerEquipmentMember" xlink:title="ComputerEquipmentMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaap_ComputerEquipmentMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_us-gaap_ComputerEquipmentMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross" xlink:title="PropertyPlantAndEquipmentGross" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentLineItems to loc_us-gaap_PropertyPlantAndEquipmentGross" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WebsiteRelatedEquipmentMember" xlink:label="loc_ctrp_WebsiteRelatedEquipmentMember" xlink:title="WebsiteRelatedEquipmentMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_ctrp_WebsiteRelatedEquipmentMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_ctrp_WebsiteRelatedEquipmentMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:title="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentLineItems to loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember" xlink:title="FurnitureAndFixturesMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaap_FurnitureAndFixturesMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_us-gaap_FurnitureAndFixturesMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentLineItems to loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:title="SoftwareAndSoftwareDevelopmentCostsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation" xlink:title="Depreciation" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaap_Depreciation" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentLineItems to loc_us-gaap_Depreciation" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LeaseholdsAndLeaseholdImprovementsMember" xlink:label="loc_us-gaap_LeaseholdsAndLeaseholdImprovementsMember" xlink:title="LeaseholdsAndLeaseholdImprovementsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaap_LeaseholdsAndLeaseholdImprovementsMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_us-gaap_LeaseholdsAndLeaseholdImprovementsMember" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="loc_us-gaap_ConstructionInProgressMember" xlink:title="ConstructionInProgressMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="loc_us-gaap_ConstructionInProgressMember" xlink:title="Definition : loc_us-gaap_PropertyPlantAndEquipmentTypeDomain to loc_us-gaap_ConstructionInProgressMember" xlink:type="arc" use="optional" order="7" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails2">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_VariableInterestEntityLineItems" xlink:label="loc_us-gaap_VariableInterestEntityLineItems" xlink:title="VariableInterestEntityLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:label="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:title="ScheduleOfVariableInterestEntitiesTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember" xlink:title="RangeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis" xlink:to="loc_us-gaap_RangeMember" xlink:title="Definition : loc_us-gaap_RangeAxis to loc_us-gaap_RangeMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis" xlink:title="LegalEntityAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain" xlink:title="EntityDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis" xlink:to="loc_dei_EntityDomain" xlink:title="Definition : loc_dei_LegalEntityAxis to loc_dei_EntityDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:label="loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:title="VariableInterestEntitiesByClassificationOfEntityAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:label="loc_us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:title="ClassificationOfVariableInterestEntityDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:to="loc_us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:title="Definition : loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis to loc_us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TypeOfAgreementAxis" xlink:label="loc_ctrp_TypeOfAgreementAxis" xlink:title="TypeOfAgreementAxis" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TypeOfAgreementDomain" xlink:label="loc_ctrp_TypeOfAgreementDomain" xlink:title="TypeOfAgreementDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ctrp_TypeOfAgreementAxis" xlink:to="loc_ctrp_TypeOfAgreementDomain" xlink:title="Definition : loc_ctrp_TypeOfAgreementAxis to loc_ctrp_TypeOfAgreementDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProductOrServiceAxis" xlink:label="loc_us-gaap_ProductOrServiceAxis" xlink:title="ProductOrServiceAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProductsAndServicesDomain" xlink:label="loc_us-gaap_ProductsAndServicesDomain" xlink:title="ProductsAndServicesDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ProductOrServiceAxis" xlink:to="loc_us-gaap_ProductsAndServicesDomain" xlink:title="Definition : loc_us-gaap_ProductOrServiceAxis to loc_us-gaap_ProductsAndServicesDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember" xlink:title="MinimumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MinimumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MinimumMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_CtripComputerTechnologyAndCtripTravelNetworkAndCtripTravelInformationMember" xlink:label="loc_ctrp_CtripComputerTechnologyAndCtripTravelNetworkAndCtripTravelInformationMember" xlink:title="CtripComputerTechnologyAndCtripTravelNetworkAndCtripTravelInformationMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_CtripComputerTechnologyAndCtripTravelNetworkAndCtripTravelInformationMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_CtripComputerTechnologyAndCtripTravelNetworkAndCtripTravelInformationMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:title="VariableInterestEntityPrimaryBeneficiaryMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:title="Definition : loc_us-gaap_ClassificationOfVariableInterestEntityDomain to loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AmendedAndRestatedTechnicalConsultingAndServicesAgreementMember" xlink:label="loc_ctrp_AmendedAndRestatedTechnicalConsultingAndServicesAgreementMember" xlink:title="AmendedAndRestatedTechnicalConsultingAndServicesAgreementMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TypeOfAgreementDomain" xlink:to="loc_ctrp_AmendedAndRestatedTechnicalConsultingAndServicesAgreementMember" xlink:title="Definition : loc_ctrp_TypeOfAgreementDomain to loc_ctrp_AmendedAndRestatedTechnicalConsultingAndServicesAgreementMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AirTicketsProductMember" xlink:label="loc_ctrp_AirTicketsProductMember" xlink:title="AirTicketsProductMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductsAndServicesDomain" xlink:to="loc_ctrp_AirTicketsProductMember" xlink:title="Definition : loc_us-gaap_ProductsAndServicesDomain to loc_ctrp_AirTicketsProductMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:to="loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfVariableInterestEntitiesTable to loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TypeOfAgreementDomain" xlink:label="TypeOfAgreementDomain_1" xlink:title="TypeOfAgreementDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ctrp_TypeOfAgreementAxis" xlink:to="TypeOfAgreementDomain_1" xlink:title="Definition : loc_ctrp_TypeOfAgreementAxis to loc_ctrp_TypeOfAgreementDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProductsAndServicesDomain" xlink:label="ProductsAndServicesDomain_2" xlink:title="ProductsAndServicesDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ProductOrServiceAxis" xlink:to="ProductsAndServicesDomain_2" xlink:title="Definition : loc_us-gaap_ProductOrServiceAxis to loc_us-gaap_ProductsAndServicesDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember" xlink:title="MaximumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MaximumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MaximumMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ChengduCtripAndChengduCtripInternationalMember" xlink:label="loc_ctrp_ChengduCtripAndChengduCtripInternationalMember" xlink:title="ChengduCtripAndChengduCtripInternationalMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ctrp_ChengduCtripAndChengduCtripInternationalMember" xlink:title="Definition : loc_dei_EntityDomain to loc_ctrp_ChengduCtripAndChengduCtripInternationalMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AmendedAndRestatedSharePledgeAgreementsMember" xlink:label="loc_ctrp_AmendedAndRestatedSharePledgeAgreementsMember" xlink:title="AmendedAndRestatedSharePledgeAgreementsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TypeOfAgreementDomain" xlink:to="loc_ctrp_AmendedAndRestatedSharePledgeAgreementsMember" xlink:title="Definition : loc_ctrp_TypeOfAgreementDomain to loc_ctrp_AmendedAndRestatedSharePledgeAgreementsMember" xlink:type="arc" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PackagedTourBusinessProductMember" xlink:label="loc_ctrp_PackagedTourBusinessProductMember" xlink:title="PackagedTourBusinessProductMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductsAndServicesDomain" xlink:to="loc_ctrp_PackagedTourBusinessProductMember" xlink:title="Definition : loc_us-gaap_ProductsAndServicesDomain to loc_ctrp_PackagedTourBusinessProductMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AverageRatePerTicketBasedOnNumberOfTicketsSold" xlink:label="loc_ctrp_AverageRatePerTicketBasedOnNumberOfTicketsSold" xlink:title="AverageRatePerTicketBasedOnNumberOfTicketsSold" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_AverageRatePerTicketBasedOnNumberOfTicketsSold" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_AverageRatePerTicketBasedOnNumberOfTicketsSold" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:to="loc_dei_LegalEntityAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfVariableInterestEntitiesTable to loc_dei_LegalEntityAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AmendedAndRestatedExclusiveOptionAgreementsMember" xlink:label="loc_ctrp_AmendedAndRestatedExclusiveOptionAgreementsMember" xlink:title="AmendedAndRestatedExclusiveOptionAgreementsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_TypeOfAgreementDomain" xlink:to="loc_ctrp_AmendedAndRestatedExclusiveOptionAgreementsMember" xlink:title="Definition : loc_ctrp_TypeOfAgreementDomain to loc_ctrp_AmendedAndRestatedExclusiveOptionAgreementsMember" xlink:type="arc" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AverageRatePerPersonPerTourBasedOnNumberOfTourPackagesSold" xlink:label="loc_ctrp_AverageRatePerPersonPerTourBasedOnNumberOfTourPackagesSold" xlink:title="AverageRatePerPersonPerTourBasedOnNumberOfTourPackagesSold" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_AverageRatePerPersonPerTourBasedOnNumberOfTourPackagesSold" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_AverageRatePerPersonPerTourBasedOnNumberOfTourPackagesSold" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:to="loc_ctrp_TypeOfAgreementAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfVariableInterestEntitiesTable to loc_ctrp_TypeOfAgreementAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ServiceFeesAsPercentageOfNetIncome" xlink:label="loc_ctrp_ServiceFeesAsPercentageOfNetIncome" xlink:title="ServiceFeesAsPercentageOfNetIncome" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_ServiceFeesAsPercentageOfNetIncome" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_ServiceFeesAsPercentageOfNetIncome" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:to="loc_us-gaap_ProductOrServiceAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfVariableInterestEntitiesTable to loc_us-gaap_ProductOrServiceAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TermOfTechnicalConsultingAndServicesAgreements" xlink:label="loc_ctrp_TermOfTechnicalConsultingAndServicesAgreements" xlink:title="TermOfTechnicalConsultingAndServicesAgreements" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_TermOfTechnicalConsultingAndServicesAgreements" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_TermOfTechnicalConsultingAndServicesAgreements" xlink:type="arc" use="optional" order="5" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:to="loc_us-gaap_RangeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfVariableInterestEntitiesTable to loc_us-gaap_RangeAxis" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TermOfAutomaticRenewalOfTechnicalConsultingAndServicesAgreements" xlink:label="loc_ctrp_TermOfAutomaticRenewalOfTechnicalConsultingAndServicesAgreements" xlink:title="TermOfAutomaticRenewalOfTechnicalConsultingAndServicesAgreements" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_TermOfAutomaticRenewalOfTechnicalConsultingAndServicesAgreements" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_TermOfAutomaticRenewalOfTechnicalConsultingAndServicesAgreements" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_NoticePeriodForTerminationOfTechnicalConsultingAndServicesAgreements" xlink:label="loc_ctrp_NoticePeriodForTerminationOfTechnicalConsultingAndServicesAgreements" xlink:title="NoticePeriodForTerminationOfTechnicalConsultingAndServicesAgreements" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_NoticePeriodForTerminationOfTechnicalConsultingAndServicesAgreements" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_NoticePeriodForTerminationOfTechnicalConsultingAndServicesAgreements" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PeriodOfExpirationOfSharePledgeAgreementsAfterPledgor" xlink:label="loc_ctrp_PeriodOfExpirationOfSharePledgeAgreementsAfterPledgor" xlink:title="PeriodOfExpirationOfSharePledgeAgreementsAfterPledgor" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_PeriodOfExpirationOfSharePledgeAgreementsAfterPledgor" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_PeriodOfExpirationOfSharePledgeAgreementsAfterPledgor" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TermOfExclusiveOptionAgreements" xlink:label="loc_ctrp_TermOfExclusiveOptionAgreements" xlink:title="TermOfExclusiveOptionAgreements" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_TermOfExclusiveOptionAgreements" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_TermOfExclusiveOptionAgreements" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_TermOfAutomaticRenewalOfExclusiveOptionAgreements" xlink:label="loc_ctrp_TermOfAutomaticRenewalOfExclusiveOptionAgreements" xlink:title="TermOfAutomaticRenewalOfExclusiveOptionAgreements" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_TermOfAutomaticRenewalOfExclusiveOptionAgreements" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_TermOfAutomaticRenewalOfExclusiveOptionAgreements" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AmountOfAssetOfConsolidatedVariableInterestEntityWhichCanBeUsedToSettleObligationsOfVariableInterestEntity" xlink:label="loc_ctrp_AmountOfAssetOfConsolidatedVariableInterestEntityWhichCanBeUsedToSettleObligationsOfVariableInterestEntity" xlink:title="AmountOfAssetOfConsolidatedVariableInterestEntityWhichCanBeUsedToSettleObligationsOfVariableInterestEntity" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_AmountOfAssetOfConsolidatedVariableInterestEntityWhichCanBeUsedToSettleObligationsOfVariableInterestEntity" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_AmountOfAssetOfConsolidatedVariableInterestEntityWhichCanBeUsedToSettleObligationsOfVariableInterestEntity" xlink:type="arc" use="optional" order="11" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_VariableInterestEntityAccountsPayable" xlink:label="loc_ctrp_VariableInterestEntityAccountsPayable" xlink:title="VariableInterestEntityAccountsPayable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_VariableInterestEntityAccountsPayable" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_VariableInterestEntityAccountsPayable" xlink:type="arc" use="optional" order="12" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets" xlink:title="Assets" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_Assets" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_Assets" xlink:type="arc" use="optional" order="13" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueFromAffiliates" xlink:label="loc_us-gaap_DueFromAffiliates" xlink:title="DueFromAffiliates" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_DueFromAffiliates" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_DueFromAffiliates" xlink:type="arc" use="optional" order="14" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AssetsExcludingIntercompanyReceivables" xlink:label="loc_ctrp_AssetsExcludingIntercompanyReceivables" xlink:title="AssetsExcludingIntercompanyReceivables" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_AssetsExcludingIntercompanyReceivables" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_AssetsExcludingIntercompanyReceivables" xlink:type="arc" use="optional" order="15" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities" xlink:title="Liabilities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_Liabilities" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_Liabilities" xlink:type="arc" use="optional" order="16" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DueToAffiliateCurrentAndNoncurrent" xlink:label="loc_us-gaap_DueToAffiliateCurrentAndNoncurrent" xlink:title="DueToAffiliateCurrentAndNoncurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_DueToAffiliateCurrentAndNoncurrent" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_DueToAffiliateCurrentAndNoncurrent" xlink:type="arc" use="optional" order="17" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LiabilitiesExcludingIntercompanyPayables" xlink:label="loc_ctrp_LiabilitiesExcludingIntercompanyPayables" xlink:title="LiabilitiesExcludingIntercompanyPayables" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_LiabilitiesExcludingIntercompanyPayables" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_LiabilitiesExcludingIntercompanyPayables" xlink:type="arc" use="optional" order="18" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:title="CashAndCashEquivalentsAtCarryingValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:type="arc" use="optional" order="19" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShortTermInvestments" xlink:label="loc_us-gaap_ShortTermInvestments" xlink:title="ShortTermInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_ShortTermInvestments" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_ShortTermInvestments" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent" xlink:title="AccountsReceivableNetCurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_AccountsReceivableNetCurrent" xlink:type="arc" use="optional" order="21" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:title="PrepaidExpenseAndOtherAssetsCurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:type="arc" use="optional" order="22" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CustomerAdvancesCurrent" xlink:label="loc_us-gaap_CustomerAdvancesCurrent" xlink:title="CustomerAdvancesCurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_CustomerAdvancesCurrent" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_CustomerAdvancesCurrent" xlink:type="arc" use="optional" order="23" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent" xlink:title="AccountsPayableCurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_AccountsPayableCurrent" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_AccountsPayableCurrent" xlink:type="arc" use="optional" order="24" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TaxesPayableCurrent" xlink:label="loc_us-gaap_TaxesPayableCurrent" xlink:title="TaxesPayableCurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_TaxesPayableCurrent" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_TaxesPayableCurrent" xlink:type="arc" use="optional" order="25" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:title="EmployeeRelatedLiabilitiesCurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:type="arc" use="optional" order="26" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent" xlink:title="OtherLiabilitiesCurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_OtherLiabilitiesCurrent" xlink:type="arc" use="optional" order="27" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:label="loc_ctrp_RevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:title="RevenuesNetOfBusinessTaxAndRelatedSurcharges" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_RevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_RevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:type="arc" use="optional" order="28" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="loc_us-gaap_CostOfRevenue" xlink:title="CostOfRevenue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_CostOfRevenue" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_CostOfRevenue" xlink:type="arc" use="optional" order="29" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss" xlink:title="ProfitLoss" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_ProfitLoss" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_ProfitLoss" xlink:type="arc" use="optional" order="30" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1" xlink:title="ConcentrationRiskPercentage1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_us-gaap_ConcentrationRiskPercentage1" xlink:type="arc" use="optional" order="31" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ProfitLossExcludingIntercompanyConsultingCharges" xlink:label="loc_ctrp_ProfitLossExcludingIntercompanyConsultingCharges" xlink:title="ProfitLossExcludingIntercompanyConsultingCharges" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_ProfitLossExcludingIntercompanyConsultingCharges" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_ProfitLossExcludingIntercompanyConsultingCharges" xlink:type="arc" use="optional" order="32" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ServiceFee" xlink:label="loc_ctrp_ServiceFee" xlink:title="ServiceFee" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_ServiceFee" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_ServiceFee" xlink:type="arc" use="optional" order="33" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AirTicketingAndPackagedTourbusinessMember" xlink:label="loc_ctrp_AirTicketingAndPackagedTourbusinessMember" xlink:title="AirTicketingAndPackagedTourbusinessMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductsAndServicesDomain" xlink:to="loc_ctrp_AirTicketingAndPackagedTourbusinessMember" xlink:title="Definition : loc_us-gaap_ProductsAndServicesDomain to loc_ctrp_AirTicketingAndPackagedTourbusinessMember" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PercentageOfBusinessTax" xlink:label="loc_ctrp_PercentageOfBusinessTax" xlink:title="PercentageOfBusinessTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_PercentageOfBusinessTax" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_PercentageOfBusinessTax" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PercentageOfValueAddedTaxes" xlink:label="loc_ctrp_PercentageOfValueAddedTaxes" xlink:title="PercentageOfValueAddedTaxes" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_PercentageOfValueAddedTaxes" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_PercentageOfValueAddedTaxes" xlink:type="arc" use="optional" order="8001" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessTaxOrValueAddedTaxRelatingToUnremittedEarningsAmount" xlink:label="loc_ctrp_BusinessTaxOrValueAddedTaxRelatingToUnremittedEarningsAmount" xlink:title="BusinessTaxOrValueAddedTaxRelatingToUnremittedEarningsAmount" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="loc_ctrp_BusinessTaxOrValueAddedTaxRelatingToUnremittedEarningsAmount" xlink:title="Definition : loc_us-gaap_VariableInterestEntityLineItems to loc_ctrp_BusinessTaxOrValueAddedTaxRelatingToUnremittedEarningsAmount" xlink:type="arc" use="optional" order="8002" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureInvestmentsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:title="ScheduleOfInvestmentsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:title="ScheduleOfInvestmentsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_ScheduleOfInvestmentsTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerAxis" xlink:label="loc_invest_InvestmentIssuerAxis" xlink:title="InvestmentIssuerAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="loc_invest_InvestmentIssuerDomain" xlink:title="InvestmentIssuerDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_invest_InvestmentIssuerAxis" xlink:to="loc_invest_InvestmentIssuerDomain" xlink:title="Definition : loc_invest_InvestmentIssuerAxis to loc_invest_InvestmentIssuerDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HantingMember" xlink:label="loc_ctrp_HantingMember" xlink:title="HantingMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_HantingMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_HantingMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_invest_InvestmentIssuerAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_invest_InvestmentIssuerAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="InvestmentIssuerDomain_1" xlink:title="InvestmentIssuerDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_invest_InvestmentIssuerAxis" xlink:to="InvestmentIssuerDomain_1" xlink:title="Definition : loc_invest_InvestmentIssuerAxis to loc_invest_InvestmentIssuerDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EHiAutoServicesLimitedMember" xlink:label="loc_ctrp_EHiAutoServicesLimitedMember" xlink:title="EHiAutoServicesLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EHiAutoServicesLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EHiAutoServicesLimitedMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AvailableForSaleSecuritiesEquitySecuritiesNoncurrent" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesEquitySecuritiesNoncurrent" xlink:title="AvailableForSaleSecuritiesEquitySecuritiesNoncurrent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesEquitySecuritiesNoncurrent" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_AvailableForSaleSecuritiesEquitySecuritiesNoncurrent" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EasyGoIncMember" xlink:label="loc_ctrp_EasyGoIncMember" xlink:title="EasyGoIncMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EasyGoIncMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EasyGoIncMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvestments" xlink:label="loc_us-gaap_EquityMethodInvestments" xlink:title="EquityMethodInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_EquityMethodInvestments" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_EquityMethodInvestments" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DiningSecretaryMember" xlink:label="loc_ctrp_DiningSecretaryMember" xlink:title="DiningSecretaryMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_DiningSecretaryMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_DiningSecretaryMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostMethodInvestments" xlink:label="loc_us-gaap_CostMethodInvestments" xlink:title="CostMethodInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_CostMethodInvestments" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_CostMethodInvestments" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HappyCityHoldingsLimitedMember" xlink:label="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="HappyCityHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_HappyCityHoldingsLimitedMember" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherInvestmentsAndSecuritiesAtCost" xlink:label="loc_us-gaap_OtherInvestmentsAndSecuritiesAtCost" xlink:title="OtherInvestmentsAndSecuritiesAtCost" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_OtherInvestmentsAndSecuritiesAtCost" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_OtherInvestmentsAndSecuritiesAtCost" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HomeInnsMember" xlink:label="loc_ctrp_HomeInnsMember" xlink:title="HomeInnsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_HomeInnsMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_HomeInnsMember" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LongTermInvestments" xlink:label="loc_us-gaap_LongTermInvestments" xlink:title="LongTermInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_LongTermInvestments" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_LongTermInvestments" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:label="loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:title="ShanghaiYishangNetworkTechnologyCoLtdMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_StarwayHongKongMember" xlink:label="loc_ctrp_StarwayHongKongMember" xlink:title="StarwayHongKongMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_StarwayHongKongMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_StarwayHongKongMember" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:label="loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:title="KeystoneLodgingHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:label="loc_ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:title="ZhongAnOnlinePropertyInsuranceCoLtdMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:type="arc" use="optional" order="10" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureFairValueMeasurementDetails3">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:label="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:title="FairValueInputsAssetsQuantitativeInformationLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:label="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:title="FairValueInputsAssetsQuantitativeInformationTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:to="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems to loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerAxis" xlink:label="loc_invest_InvestmentIssuerAxis" xlink:title="InvestmentIssuerAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="loc_invest_InvestmentIssuerDomain" xlink:title="InvestmentIssuerDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_invest_InvestmentIssuerAxis" xlink:to="loc_invest_InvestmentIssuerDomain" xlink:title="Definition : loc_invest_InvestmentIssuerAxis to loc_invest_InvestmentIssuerDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueByAssetClassAxis" xlink:label="loc_us-gaap_FairValueByAssetClassAxis" xlink:title="FairValueByAssetClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:title="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByAssetClassAxis" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:title="Definition : loc_us-gaap_FairValueByAssetClassAxis to loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ValuationTechniqueAxis" xlink:label="loc_us-gaap_ValuationTechniqueAxis" xlink:title="ValuationTechniqueAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ValuationTechniqueDomain" xlink:label="loc_us-gaap_ValuationTechniqueDomain" xlink:title="ValuationTechniqueDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ValuationTechniqueAxis" xlink:to="loc_us-gaap_ValuationTechniqueDomain" xlink:title="Definition : loc_us-gaap_ValuationTechniqueAxis to loc_us-gaap_ValuationTechniqueDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ProbabilityByScenarioAxis" xlink:label="loc_ctrp_ProbabilityByScenarioAxis" xlink:title="ProbabilityByScenarioAxis" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ProbabilityByScenarioDomain" xlink:label="loc_ctrp_ProbabilityByScenarioDomain" xlink:title="ProbabilityByScenarioDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ctrp_ProbabilityByScenarioAxis" xlink:to="loc_ctrp_ProbabilityByScenarioDomain" xlink:title="Definition : loc_ctrp_ProbabilityByScenarioAxis to loc_ctrp_ProbabilityByScenarioDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EasyGoIncMember" xlink:label="loc_ctrp_EasyGoIncMember" xlink:title="EasyGoIncMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EasyGoIncMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EasyGoIncMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AvailableforsaleSecuritiesMember" xlink:label="loc_us-gaap_AvailableforsaleSecuritiesMember" xlink:title="AvailableforsaleSecuritiesMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:to="loc_us-gaap_AvailableforsaleSecuritiesMember" xlink:title="Definition : loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain to loc_us-gaap_AvailableforsaleSecuritiesMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DiscountedCashFlowValuationTechniqueMember" xlink:label="loc_ctrp_DiscountedCashFlowValuationTechniqueMember" xlink:title="DiscountedCashFlowValuationTechniqueMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ValuationTechniqueDomain" xlink:to="loc_ctrp_DiscountedCashFlowValuationTechniqueMember" xlink:title="Definition : loc_us-gaap_ValuationTechniqueDomain to loc_ctrp_DiscountedCashFlowValuationTechniqueMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_LiquidationScenarioMember" xlink:label="loc_ctrp_LiquidationScenarioMember" xlink:title="LiquidationScenarioMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_ProbabilityByScenarioDomain" xlink:to="loc_ctrp_LiquidationScenarioMember" xlink:title="Definition : loc_ctrp_ProbabilityByScenarioDomain to loc_ctrp_LiquidationScenarioMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:to="loc_us-gaap_FairValueByAssetClassAxis" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable to loc_us-gaap_FairValueByAssetClassAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ValuationTechniqueDomain" xlink:label="ValuationTechniqueDomain_1" xlink:title="ValuationTechniqueDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ValuationTechniqueAxis" xlink:to="ValuationTechniqueDomain_1" xlink:title="Definition : loc_us-gaap_ValuationTechniqueAxis to loc_us-gaap_ValuationTechniqueDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ProbabilityByScenarioDomain" xlink:label="ProbabilityByScenarioDomain_2" xlink:title="ProbabilityByScenarioDomain_2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ctrp_ProbabilityByScenarioAxis" xlink:to="ProbabilityByScenarioDomain_2" xlink:title="Definition : loc_ctrp_ProbabilityByScenarioAxis to loc_ctrp_ProbabilityByScenarioDomain" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DiningSecretaryMember" xlink:label="loc_ctrp_DiningSecretaryMember" xlink:title="DiningSecretaryMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_DiningSecretaryMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_DiningSecretaryMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_OptionPricingModelValuationTechniqueMember" xlink:label="loc_ctrp_OptionPricingModelValuationTechniqueMember" xlink:title="OptionPricingModelValuationTechniqueMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ValuationTechniqueDomain" xlink:to="loc_ctrp_OptionPricingModelValuationTechniqueMember" xlink:title="Definition : loc_us-gaap_ValuationTechniqueDomain to loc_ctrp_OptionPricingModelValuationTechniqueMember" xlink:type="arc" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RedemptionScenarioMember" xlink:label="loc_ctrp_RedemptionScenarioMember" xlink:title="RedemptionScenarioMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_ProbabilityByScenarioDomain" xlink:to="loc_ctrp_RedemptionScenarioMember" xlink:title="Definition : loc_ctrp_ProbabilityByScenarioDomain to loc_ctrp_RedemptionScenarioMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsDiscountRate" xlink:label="loc_us-gaap_FairValueInputsDiscountRate" xlink:title="FairValueInputsDiscountRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:to="loc_us-gaap_FairValueInputsDiscountRate" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems to loc_us-gaap_FairValueInputsDiscountRate" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:to="loc_invest_InvestmentIssuerAxis" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable to loc_invest_InvestmentIssuerAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HappyCityHoldingsLimitedMember" xlink:label="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="HappyCityHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_HappyCityHoldingsLimitedMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_MandatoryConversionScenarioMember" xlink:label="loc_ctrp_MandatoryConversionScenarioMember" xlink:title="MandatoryConversionScenarioMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_ProbabilityByScenarioDomain" xlink:to="loc_ctrp_MandatoryConversionScenarioMember" xlink:title="Definition : loc_ctrp_ProbabilityByScenarioDomain to loc_ctrp_MandatoryConversionScenarioMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsLongTermRevenueGrowthRate" xlink:label="loc_us-gaap_FairValueInputsLongTermRevenueGrowthRate" xlink:title="FairValueInputsLongTermRevenueGrowthRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:to="loc_us-gaap_FairValueInputsLongTermRevenueGrowthRate" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems to loc_us-gaap_FairValueInputsLongTermRevenueGrowthRate" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:to="loc_us-gaap_ValuationTechniqueAxis" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable to loc_us-gaap_ValuationTechniqueAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_IPOScenarioMember" xlink:label="loc_ctrp_IPOScenarioMember" xlink:title="IPOScenarioMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ctrp_ProbabilityByScenarioDomain" xlink:to="loc_ctrp_IPOScenarioMember" xlink:title="Definition : loc_ctrp_ProbabilityByScenarioDomain to loc_ctrp_IPOScenarioMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsDiscountForLackOfMarketability" xlink:label="loc_us-gaap_FairValueInputsDiscountForLackOfMarketability" xlink:title="FairValueInputsDiscountForLackOfMarketability" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:to="loc_us-gaap_FairValueInputsDiscountForLackOfMarketability" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems to loc_us-gaap_FairValueInputsDiscountForLackOfMarketability" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:to="loc_ctrp_ProbabilityByScenarioAxis" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable to loc_ctrp_ProbabilityByScenarioAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssumptionsExpectedTerm" xlink:label="loc_us-gaap_FairValueAssumptionsExpectedTerm" xlink:title="FairValueAssumptionsExpectedTerm" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:to="loc_us-gaap_FairValueAssumptionsExpectedTerm" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems to loc_us-gaap_FairValueAssumptionsExpectedTerm" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssumptionsRiskFreeInterestRate" xlink:label="loc_us-gaap_FairValueAssumptionsRiskFreeInterestRate" xlink:title="FairValueAssumptionsRiskFreeInterestRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:to="loc_us-gaap_FairValueAssumptionsRiskFreeInterestRate" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems to loc_us-gaap_FairValueAssumptionsRiskFreeInterestRate" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:title="FairValueAssumptionsExpectedVolatilityRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:to="loc_us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems to loc_us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_FairValueInputsProbabilityRate" xlink:label="loc_ctrp_FairValueInputsProbabilityRate" xlink:title="FairValueInputsProbabilityRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:to="loc_ctrp_FairValueInputsProbabilityRate" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems to loc_ctrp_FairValueInputsProbabilityRate" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssumptionsExpectedDividendRate" xlink:label="loc_us-gaap_FairValueAssumptionsExpectedDividendRate" xlink:title="FairValueAssumptionsExpectedDividendRate" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:to="loc_us-gaap_FairValueAssumptionsExpectedDividendRate" xlink:title="Definition : loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems to loc_us-gaap_FairValueAssumptionsExpectedDividendRate" xlink:type="arc" use="optional" order="9" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesDetails12">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis" xlink:title="PlanNameAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain" xlink:title="PlanNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis" xlink:to="loc_us-gaap_PlanNameDomain" xlink:title="Definition : loc_us-gaap_PlanNameAxis to loc_us-gaap_PlanNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis" xlink:title="AwardTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="Definition : loc_us-gaap_AwardTypeAxis to loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_Ctrip2007IncentivePlanMember" xlink:label="loc_ctrp_Ctrip2007IncentivePlanMember" xlink:title="Ctrip2007IncentivePlanMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain" xlink:to="loc_ctrp_Ctrip2007IncentivePlanMember" xlink:title="Definition : loc_us-gaap_PlanNameDomain to loc_ctrp_Ctrip2007IncentivePlanMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:title="RestrictedStockUnitsRSUMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaap_PlanNameAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to loc_us-gaap_PlanNameAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward to loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="loc_us-gaap_AwardTypeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to loc_us-gaap_AwardTypeAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsConvertedInPeriod" xlink:label="loc_ctrp_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsConvertedInPeriod" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsConvertedInPeriod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_ctrp_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsConvertedInPeriod" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_ctrp_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsConvertedInPeriod" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsConvertedFromOptions" xlink:label="loc_ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsConvertedFromOptions" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsConvertedFromOptions" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:to="loc_ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsConvertedFromOptions" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward to loc_ctrp_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsConvertedFromOptions" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward to loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward to loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures" xlink:type="arc" use="optional" order="5" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:title="AllocatedShareBasedCompensationExpense" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:title="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:title="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:type="arc" use="optional" order="8" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureInvestmentsDetails7">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:title="ScheduleOfInvestmentsLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:title="ScheduleOfInvestmentsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_ScheduleOfInvestmentsTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerAxis" xlink:label="loc_invest_InvestmentIssuerAxis" xlink:title="InvestmentIssuerAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="loc_invest_InvestmentIssuerDomain" xlink:title="InvestmentIssuerDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_invest_InvestmentIssuerAxis" xlink:to="loc_invest_InvestmentIssuerDomain" xlink:title="Definition : loc_invest_InvestmentIssuerAxis to loc_invest_InvestmentIssuerDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:title="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:title="DisposalGroupsIncludingDiscontinuedOperationsNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:title="Definition : loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis to loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="loc_us-gaap_RelatedPartyDomain" xlink:title="Definition : loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis to loc_us-gaap_RelatedPartyDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember" xlink:title="RangeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis" xlink:to="loc_us-gaap_RangeMember" xlink:title="Definition : loc_us-gaap_RangeAxis to loc_us-gaap_RangeMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:label="loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:title="ShanghaiYishangNetworkTechnologyCoLtdMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_ShanghaiYishangNetworkTechnologyCoLtdMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_StarwayHongKongMember" xlink:label="loc_ctrp_StarwayHongKongMember" xlink:title="StarwayHongKongMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:to="loc_ctrp_StarwayHongKongMember" xlink:title="Definition : loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain to loc_ctrp_StarwayHongKongMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HantingMember" xlink:label="loc_ctrp_HantingMember" xlink:title="HantingMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="loc_ctrp_HantingMember" xlink:title="Definition : loc_us-gaap_RelatedPartyDomain to loc_ctrp_HantingMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember" xlink:title="MinimumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MinimumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MinimumMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_invest_InvestmentIssuerAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_invest_InvestmentIssuerAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:label="loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:title="KeystoneLodgingHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_KeystoneLodgingHoldingsLimitedMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember" xlink:title="MaximumMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember" xlink:to="loc_us-gaap_MaximumMember" xlink:title="Definition : loc_us-gaap_RangeMember to loc_us-gaap_MaximumMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="BusinessAcquisitionPercentageOfVotingInterestsAcquired" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:label="loc_ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:title="ZhongAnOnlinePropertyInsuranceCoLtdMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_ZhongAnOnlinePropertyInsuranceCoLtdMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_PaymentsToAcquireInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments" xlink:title="PaymentsToAcquireInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_PaymentsToAcquireInvestments" xlink:type="arc" use="optional" order="3" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BTGJianguoMember" xlink:label="loc_ctrp_BTGJianguoMember" xlink:title="BTGJianguoMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_BTGJianguoMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_BTGJianguoMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_PeriodForTotalRevenueAndNetIncomePerformanceUpToWhichContingentConsiderationIsTiedUp" xlink:label="loc_ctrp_PeriodForTotalRevenueAndNetIncomePerformanceUpToWhichContingentConsiderationIsTiedUp" xlink:title="PeriodForTotalRevenueAndNetIncomePerformanceUpToWhichContingentConsiderationIsTiedUp" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_ctrp_PeriodForTotalRevenueAndNetIncomePerformanceUpToWhichContingentConsiderationIsTiedUp" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_ctrp_PeriodForTotalRevenueAndNetIncomePerformanceUpToWhichContingentConsiderationIsTiedUp" xlink:type="arc" use="optional" order="4" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="loc_us-gaap_RangeAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsTable to loc_us-gaap_RangeAxis" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessCombinationContingentConsiderationEstimatedEnterpriseValue" xlink:label="loc_ctrp_BusinessCombinationContingentConsiderationEstimatedEnterpriseValue" xlink:title="BusinessCombinationContingentConsiderationEstimatedEnterpriseValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_ctrp_BusinessCombinationContingentConsiderationEstimatedEnterpriseValue" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_ctrp_BusinessCombinationContingentConsiderationEstimatedEnterpriseValue" xlink:type="arc" use="optional" order="5" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:title="BusinessCombinationContingentConsiderationLiability" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:type="arc" use="optional" order="6" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:title="MinorityInterestOwnershipPercentageByParent" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:type="arc" use="optional" order="7" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:title="MinorityInterestOwnershipPercentageByNoncontrollingOwners" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:type="arc" use="optional" order="8" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostMethodInvestmentsRealizedGains" xlink:label="loc_us-gaap_CostMethodInvestmentsRealizedGains" xlink:title="CostMethodInvestmentsRealizedGains" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_CostMethodInvestmentsRealizedGains" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_CostMethodInvestmentsRealizedGains" xlink:type="arc" use="optional" order="9" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges" xlink:title="AssetImpairmentCharges" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_AssetImpairmentCharges" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_AssetImpairmentCharges" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax" xlink:label="loc_us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax" xlink:title="DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="loc_us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax" xlink:title="Definition : loc_us-gaap_ScheduleOfInvestmentsLineItems to loc_us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax" xlink:type="arc" use="optional" order="8000" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureFairValueMeasurementTables">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems to loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerAxis" xlink:label="loc_invest_InvestmentIssuerAxis" xlink:title="InvestmentIssuerAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentIssuerDomain" xlink:label="loc_invest_InvestmentIssuerDomain" xlink:title="InvestmentIssuerDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_invest_InvestmentIssuerAxis" xlink:to="loc_invest_InvestmentIssuerDomain" xlink:title="Definition : loc_invest_InvestmentIssuerAxis to loc_invest_InvestmentIssuerDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EHiAutoServicesLimitedMember" xlink:label="loc_ctrp_EHiAutoServicesLimitedMember" xlink:title="EHiAutoServicesLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EHiAutoServicesLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EHiAutoServicesLimitedMember" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="loc_invest_InvestmentIssuerAxis" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable to loc_invest_InvestmentIssuerAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EasyGoIncMember" xlink:label="loc_ctrp_EasyGoIncMember" xlink:title="EasyGoIncMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_EasyGoIncMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_EasyGoIncMember" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:title="FairValueAssetsMeasuredOnRecurringBasisTextBlock" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems to loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_DiningSecretaryMember" xlink:label="loc_ctrp_DiningSecretaryMember" xlink:title="DiningSecretaryMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_DiningSecretaryMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_DiningSecretaryMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:title="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems to loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_HappyCityHoldingsLimitedMember" xlink:label="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="HappyCityHoldingsLimitedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_invest_InvestmentIssuerDomain" xlink:to="loc_ctrp_HappyCityHoldingsLimitedMember" xlink:title="Definition : loc_invest_InvestmentIssuerDomain to loc_ctrp_HappyCityHoldingsLimitedMember" xlink:type="arc" use="optional" order="4" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock" xlink:label="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock" xlink:title="FairValueInputsAssetsQuantitativeInformationTableTextBlock" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock" xlink:title="Definition : loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems to loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock" xlink:type="arc" use="optional" order="4" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureGoodwillDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="loc_us-gaap_GoodwillLineItems" xlink:title="GoodwillLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfGoodwillTable" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable" xlink:title="ScheduleOfGoodwillTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable" xlink:title="Definition : loc_us-gaap_GoodwillLineItems to loc_us-gaap_ScheduleOfGoodwillTable" xlink:type="arc" use="optional" order="1" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_B2BHotelReservationCompanyMember" xlink:label="loc_ctrp_B2BHotelReservationCompanyMember" xlink:title="B2BHotelReservationCompanyMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_B2BHotelReservationCompanyMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_B2BHotelReservationCompanyMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GoodwillRollForward" xlink:label="loc_us-gaap_GoodwillRollForward" xlink:title="GoodwillRollForward" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill" xlink:title="Goodwill" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward" xlink:to="loc_us-gaap_Goodwill" xlink:title="Definition : loc_us-gaap_GoodwillRollForward to loc_us-gaap_Goodwill" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfGoodwillTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WholesalerOperatedHotelReservationAndAirTicketingServicesMember" xlink:label="loc_ctrp_WholesalerOperatedHotelReservationAndAirTicketingServicesMember" xlink:title="WholesalerOperatedHotelReservationAndAirTicketingServicesMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_WholesalerOperatedHotelReservationAndAirTicketingServicesMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_WholesalerOperatedHotelReservationAndAirTicketingServicesMember" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems" xlink:to="loc_us-gaap_GoodwillRollForward" xlink:title="Definition : loc_us-gaap_GoodwillLineItems to loc_us-gaap_GoodwillRollForward" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GoodwillAcquiredDuringPeriod" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod" xlink:title="GoodwillAcquiredDuringPeriod" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod" xlink:title="Definition : loc_us-gaap_GoodwillRollForward to loc_us-gaap_GoodwillAcquiredDuringPeriod" xlink:type="arc" use="optional" order="2" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_OthersAcquisitionMember" xlink:label="loc_ctrp_OthersAcquisitionMember" xlink:title="OthersAcquisitionMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_OthersAcquisitionMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_OthersAcquisitionMember" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GoodwillPeriodIncreaseDecrease" xlink:label="loc_us-gaap_GoodwillPeriodIncreaseDecrease" xlink:title="GoodwillPeriodIncreaseDecrease" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward" xlink:to="loc_us-gaap_GoodwillPeriodIncreaseDecrease" xlink:title="Definition : loc_us-gaap_GoodwillRollForward to loc_us-gaap_GoodwillPeriodIncreaseDecrease" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="BusinessAcquisitionPercentageOfVotingInterestsAcquired" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:title="Definition : loc_us-gaap_GoodwillRollForward to loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:type="arc" use="optional" order="4" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosureInvestmentsDetails50">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="FiniteLivedIntangibleAssetsByMajorClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="FiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="IndefiniteLivedIntangibleAssetsByMajorClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="IndefiniteLivedIntangibleAssetsMajorClassNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis to loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:title="EquityMethodInvesteeNameDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis to loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TrademarksMember" xlink:label="loc_us-gaap_TrademarksMember" xlink:title="TrademarksMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_TrademarksMember" xlink:title="Definition : loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_TrademarksMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EquityMethodInvestmentHomeInnsMember" xlink:label="loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:title="EquityMethodInvestmentHomeInnsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain" xlink:to="loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:title="Definition : loc_us-gaap_EquityMethodInvesteeNameDomain to loc_ctrp_EquityMethodInvestmentHomeInnsMember" xlink:type="arc" use="optional" order="1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:title="ScheduleOfEquityMethodInvestmentsTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable to loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="arc" use="optional" order="1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable to loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:type="arc" use="optional" order="2" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable to loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:type="arc" use="optional" order="3" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:title="ScheduleOfEquityMethodInvestmentsLineItems" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:title="Definition : loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems to loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:type="arc" use="optional" order="8000" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FranchiseRightsMember" xlink:label="loc_us-gaap_FranchiseRightsMember" xlink:title="FranchiseRightsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_FranchiseRightsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_FranchiseRightsMember" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CustomerListsMember" xlink:label="loc_us-gaap_CustomerListsMember" xlink:title="CustomerListsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_CustomerListsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_CustomerListsMember" xlink:type="arc" use="optional" order="8001" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LeaseAgreementsMember" xlink:label="loc_us-gaap_LeaseAgreementsMember" xlink:title="LeaseAgreementsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="loc_us-gaap_LeaseAgreementsMember" xlink:title="Definition : loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain to loc_us-gaap_LeaseAgreementsMember" xlink:type="arc" use="optional" order="8002" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/StatementOfStockholdersEquity">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems" xlink:title="StatementLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable" xlink:title="StatementTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_StatementTable" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_StatementTable" xlink:type="arc" order="10" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis" xlink:title="StatementEquityComponentsAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain" xlink:title="EquityComponentDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis" xlink:to="loc_us-gaap_EquityComponentDomain" xlink:title="Definition : loc_us-gaap_StatementEquityComponentsAxis to loc_us-gaap_EquityComponentDomain" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember" xlink:title="CommonStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="loc_us-gaap_CommonStockMember" xlink:title="Definition : loc_us-gaap_EquityComponentDomain to loc_us-gaap_CommonStockMember" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:title="IncreaseDecreaseInStockholdersEquityRollForward" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:title="StockIssuedDuringPeriodValueShareBasedCompensation" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:title="StockIssuedDuringPeriodSharesShareBasedCompensation" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:title="Definition : loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation to loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:title="StockIssuedDuringPeriodValueStockOptionsExercised" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:title="StockIssuedDuringPeriodSharesStockOptionsExercised" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:title="Definition : loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised to loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:title="TreasuryStockValueAcquiredCostMethod" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired" xlink:title="TreasuryStockSharesAcquired" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired" xlink:title="Definition : loc_us-gaap_TreasuryStockValueAcquiredCostMethod to loc_us-gaap_TreasuryStockSharesAcquired" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:title="StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="Definition : loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities to loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:label="loc_us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:title="StockholdersEquityPeriodIncreaseDecrease" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:title="StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:title="Definition : loc_us-gaap_StockholdersEquityPeriodIncreaseDecrease to loc_us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:type="arc" use="optional" order="10" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable" xlink:to="loc_us-gaap_StatementEquityComponentsAxis" xlink:title="Definition : loc_us-gaap_StatementTable to loc_us-gaap_StatementEquityComponentsAxis" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="EquityComponentDomain_1" xlink:title="EquityComponentDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis" xlink:to="EquityComponentDomain_1" xlink:title="Definition : loc_us-gaap_StatementEquityComponentsAxis to loc_us-gaap_EquityComponentDomain" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember" xlink:title="AdditionalPaidInCapitalMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember" xlink:title="Definition : loc_us-gaap_EquityComponentDomain to loc_us-gaap_AdditionalPaidInCapitalMember" xlink:type="arc" use="optional" order="20" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:type="arc" use="optional" order="20" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RetainedEarningsAppropriatedMember" xlink:label="loc_us-gaap_RetainedEarningsAppropriatedMember" xlink:title="RetainedEarningsAppropriatedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="loc_us-gaap_RetainedEarningsAppropriatedMember" xlink:title="Definition : loc_us-gaap_EquityComponentDomain to loc_us-gaap_RetainedEarningsAppropriatedMember" xlink:type="arc" use="optional" order="30" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:title="AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:type="arc" use="optional" order="30" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:title="AccumulatedOtherComprehensiveIncomeMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:title="Definition : loc_us-gaap_EquityComponentDomain to loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:type="arc" use="optional" order="40" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AmountAllocatedToStatutoryReserves" xlink:label="loc_ctrp_AmountAllocatedToStatutoryReserves" xlink:title="AmountAllocatedToStatutoryReserves" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_ctrp_AmountAllocatedToStatutoryReserves" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_ctrp_AmountAllocatedToStatutoryReserves" xlink:type="arc" use="optional" order="40" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RetainedEarningsUnappropriatedMember" xlink:label="loc_us-gaap_RetainedEarningsUnappropriatedMember" xlink:title="RetainedEarningsUnappropriatedMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="loc_us-gaap_RetainedEarningsUnappropriatedMember" xlink:title="Definition : loc_us-gaap_EquityComponentDomain to loc_us-gaap_RetainedEarningsUnappropriatedMember" xlink:type="arc" use="optional" order="50" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:type="arc" use="optional" order="50" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_us-gaap_TreasuryStockMember" xlink:title="TreasuryStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="loc_us-gaap_TreasuryStockMember" xlink:title="Definition : loc_us-gaap_EquityComponentDomain to loc_us-gaap_TreasuryStockMember" xlink:type="arc" use="optional" order="60" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:title="OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:type="arc" use="optional" order="60" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ParentMember" xlink:label="loc_us-gaap_ParentMember" xlink:title="ParentMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="loc_us-gaap_ParentMember" xlink:title="Definition : loc_us-gaap_EquityComponentDomain to loc_us-gaap_ParentMember" xlink:type="arc" use="optional" order="70" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:title="OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:type="arc" use="optional" order="70" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="loc_us-gaap_NoncontrollingInterestMember" xlink:title="NoncontrollingInterestMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="loc_us-gaap_NoncontrollingInterestMember" xlink:title="Definition : loc_us-gaap_EquityComponentDomain to loc_us-gaap_NoncontrollingInterestMember" xlink:type="arc" use="optional" order="80" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdjustmentsToAdditionalPaidInCapitalPurchaseOfCallOption" xlink:label="loc_ctrp_AdjustmentsToAdditionalPaidInCapitalPurchaseOfCallOption" xlink:title="AdjustmentsToAdditionalPaidInCapitalPurchaseOfCallOption" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_ctrp_AdjustmentsToAdditionalPaidInCapitalPurchaseOfCallOption" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_ctrp_AdjustmentsToAdditionalPaidInCapitalPurchaseOfCallOption" xlink:type="arc" use="optional" order="80" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued" xlink:title="AdjustmentsToAdditionalPaidInCapitalWarrantIssued" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued" xlink:type="arc" use="optional" order="90" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdjustmentsToAdditionalPaidInCapitalUnwindCallOption" xlink:label="loc_ctrp_AdjustmentsToAdditionalPaidInCapitalUnwindCallOption" xlink:title="AdjustmentsToAdditionalPaidInCapitalUnwindCallOption" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_ctrp_AdjustmentsToAdditionalPaidInCapitalUnwindCallOption" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_ctrp_AdjustmentsToAdditionalPaidInCapitalUnwindCallOption" xlink:type="arc" use="optional" order="100" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:type="arc" use="optional" order="110" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquityChangeInReportingEntity" xlink:label="loc_us-gaap_StockholdersEquityChangeInReportingEntity" xlink:title="StockholdersEquityChangeInReportingEntity" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_StockholdersEquityChangeInReportingEntity" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_StockholdersEquityChangeInReportingEntity" xlink:type="arc" use="optional" order="120" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss" xlink:title="ProfitLoss" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_ProfitLoss" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_ProfitLoss" xlink:type="arc" use="optional" order="130" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance" xlink:label="loc_us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance" xlink:title="NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance" xlink:type="arc" use="optional" order="140" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_StockIssuedDuringPeriodValueConvertiblePreferredShareBySubsidiary" xlink:label="loc_ctrp_StockIssuedDuringPeriodValueConvertiblePreferredShareBySubsidiary" xlink:title="StockIssuedDuringPeriodValueConvertiblePreferredShareBySubsidiary" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_ctrp_StockIssuedDuringPeriodValueConvertiblePreferredShareBySubsidiary" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_ctrp_StockIssuedDuringPeriodValueConvertiblePreferredShareBySubsidiary" xlink:type="arc" use="optional" order="150" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination" xlink:label="loc_us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination" xlink:title="NoncontrollingInterestIncreaseFromBusinessCombination" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination" xlink:type="arc" use="optional" order="160" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_MinorityInterestDecreaseFromRedemptions" xlink:label="loc_us-gaap_MinorityInterestDecreaseFromRedemptions" xlink:title="MinorityInterestDecreaseFromRedemptions" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_MinorityInterestDecreaseFromRedemptions" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_MinorityInterestDecreaseFromRedemptions" xlink:type="arc" use="optional" order="170" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:title="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:type="arc" use="optional" order="180" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="loc_us-gaap_SharesOutstanding" xlink:title="SharesOutstanding" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_SharesOutstanding" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_SharesOutstanding" xlink:type="arc" use="optional" order="190" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:type="arc" use="optional" order="200" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:title="StockIssuedDuringPeriodValueNewIssues" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:title="Definition : loc_us-gaap_StockIssuedDuringPeriodValueNewIssues to loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdjustmentsToAdditionalPaidInCapitalRelatedToConvertibleDebtOffering" xlink:label="loc_ctrp_AdjustmentsToAdditionalPaidInCapitalRelatedToConvertibleDebtOffering" xlink:title="AdjustmentsToAdditionalPaidInCapitalRelatedToConvertibleDebtOffering" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="loc_ctrp_AdjustmentsToAdditionalPaidInCapitalRelatedToConvertibleDebtOffering" xlink:title="Definition : loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward to loc_ctrp_AdjustmentsToAdditionalPaidInCapitalRelatedToConvertibleDebtOffering" xlink:type="arc" use="optional" order="8010" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/StatementOfIncome">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems" xlink:title="StatementLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable" xlink:title="StatementTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_StatementTable" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_StatementTable" xlink:type="arc" use="optional" order="10" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="loc_us-gaap_ClassOfStockDomain" xlink:title="Definition : loc_us-gaap_StatementClassOfStockAxis to loc_us-gaap_ClassOfStockDomain" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis" xlink:title="IncomeStatementLocationAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain" xlink:title="IncomeStatementLocationDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis" xlink:to="loc_us-gaap_IncomeStatementLocationDomain" xlink:title="Definition : loc_us-gaap_IncomeStatementLocationAxis to loc_us-gaap_IncomeStatementLocationDomain" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember" xlink:title="CommonStockMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_us-gaap_CommonStockMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_us-gaap_CommonStockMember" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember" xlink:title="ResearchAndDevelopmentExpenseMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember" xlink:title="Definition : loc_us-gaap_IncomeStatementLocationDomain to loc_us-gaap_ResearchAndDevelopmentExpenseMember" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="loc_us-gaap_RevenuesAbstract" xlink:title="RevenuesAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RevenuesFromHotelReservation" xlink:label="loc_ctrp_RevenuesFromHotelReservation" xlink:title="RevenuesFromHotelReservation" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract" xlink:to="loc_ctrp_RevenuesFromHotelReservation" xlink:title="Definition : loc_us-gaap_RevenuesAbstract to loc_ctrp_RevenuesFromHotelReservation" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract" xlink:title="OperatingExpensesAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense" xlink:title="ResearchAndDevelopmentExpense" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense" xlink:title="Definition : loc_us-gaap_OperatingExpensesAbstract to loc_us-gaap_ResearchAndDevelopmentExpense" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:title="OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:title="OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:title="Definition : loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract to loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract" xlink:title="EarningsPerShareAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic" xlink:title="EarningsPerShareBasic" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract" xlink:to="loc_us-gaap_EarningsPerShareBasic" xlink:title="Definition : loc_us-gaap_EarningsPerShareAbstract to loc_us-gaap_EarningsPerShareBasic" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:title="WeightedAverageNumberOfSharesOutstandingAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="Definition : loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract to loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ShareBasedCompensationAbstract" xlink:label="loc_us-gaap_ShareBasedCompensationAbstract" xlink:title="ShareBasedCompensationAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:title="AllocatedShareBasedCompensationExpense" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationAbstract" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:title="Definition : loc_us-gaap_ShareBasedCompensationAbstract to loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:type="arc" use="optional" order="10" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable" xlink:to="loc_us-gaap_StatementClassOfStockAxis" xlink:title="Definition : loc_us-gaap_StatementTable to loc_us-gaap_StatementClassOfStockAxis" xlink:type="arc" use="optional" order="10" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="IncomeStatementLocationDomain_1" xlink:title="IncomeStatementLocationDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis" xlink:to="IncomeStatementLocationDomain_1" xlink:title="Definition : loc_us-gaap_IncomeStatementLocationAxis to loc_us-gaap_IncomeStatementLocationDomain" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_AdsMember" xlink:label="loc_ctrp_AdsMember" xlink:title="AdsMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="loc_ctrp_AdsMember" xlink:title="Definition : loc_us-gaap_ClassOfStockDomain to loc_ctrp_AdsMember" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SellingAndMarketingExpenseMember" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember" xlink:title="SellingAndMarketingExpenseMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember" xlink:title="Definition : loc_us-gaap_IncomeStatementLocationDomain to loc_us-gaap_SellingAndMarketingExpenseMember" xlink:type="arc" use="optional" order="20" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_RevenuesAbstract" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_RevenuesAbstract" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RevenuesFromAirTicketing" xlink:label="loc_ctrp_RevenuesFromAirTicketing" xlink:title="RevenuesFromAirTicketing" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract" xlink:to="loc_ctrp_RevenuesFromAirTicketing" xlink:title="Definition : loc_us-gaap_RevenuesAbstract to loc_ctrp_RevenuesFromAirTicketing" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="loc_us-gaap_SellingAndMarketingExpense" xlink:title="SellingAndMarketingExpense" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract" xlink:to="loc_us-gaap_SellingAndMarketingExpense" xlink:title="Definition : loc_us-gaap_OperatingExpensesAbstract to loc_us-gaap_SellingAndMarketingExpense" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:title="OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:title="Definition : loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract to loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted" xlink:title="EarningsPerShareDiluted" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract" xlink:to="loc_us-gaap_EarningsPerShareDiluted" xlink:title="Definition : loc_us-gaap_EarningsPerShareAbstract to loc_us-gaap_EarningsPerShareDiluted" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="WeightedAverageNumberOfDilutedSharesOutstanding" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="Definition : loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract to loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:type="arc" use="optional" order="20" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable" xlink:to="loc_us-gaap_IncomeStatementLocationAxis" xlink:title="Definition : loc_us-gaap_StatementTable to loc_us-gaap_IncomeStatementLocationAxis" xlink:type="arc" use="optional" order="20" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember" xlink:title="GeneralAndAdministrativeExpenseMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember" xlink:title="Definition : loc_us-gaap_IncomeStatementLocationDomain to loc_us-gaap_GeneralAndAdministrativeExpenseMember" xlink:type="arc" use="optional" order="30" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RevenuesFromPackagedTour" xlink:label="loc_ctrp_RevenuesFromPackagedTour" xlink:title="RevenuesFromPackagedTour" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract" xlink:to="loc_ctrp_RevenuesFromPackagedTour" xlink:title="Definition : loc_us-gaap_RevenuesAbstract to loc_ctrp_RevenuesFromPackagedTour" xlink:type="arc" use="optional" order="30" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="loc_us-gaap_CostOfRevenue" xlink:title="CostOfRevenue" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_CostOfRevenue" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_CostOfRevenue" xlink:type="arc" use="optional" order="30" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense" xlink:title="GeneralAndAdministrativeExpense" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense" xlink:title="Definition : loc_us-gaap_OperatingExpensesAbstract to loc_us-gaap_GeneralAndAdministrativeExpense" xlink:type="arc" use="optional" order="30" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:title="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:title="Definition : loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract to loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:type="arc" use="optional" order="30" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RevenuesFromCorporateTravel" xlink:label="loc_ctrp_RevenuesFromCorporateTravel" xlink:title="RevenuesFromCorporateTravel" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract" xlink:to="loc_ctrp_RevenuesFromCorporateTravel" xlink:title="Definition : loc_us-gaap_RevenuesAbstract to loc_ctrp_RevenuesFromCorporateTravel" xlink:type="arc" use="optional" order="40" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit" xlink:title="GrossProfit" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_GrossProfit" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_GrossProfit" xlink:type="arc" use="optional" order="40" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses" xlink:title="OperatingExpenses" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract" xlink:to="loc_us-gaap_OperatingExpenses" xlink:title="Definition : loc_us-gaap_OperatingExpensesAbstract to loc_us-gaap_OperatingExpenses" xlink:type="arc" use="optional" order="40" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherSalesRevenueNet" xlink:label="loc_us-gaap_OtherSalesRevenueNet" xlink:title="OtherSalesRevenueNet" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract" xlink:to="loc_us-gaap_OtherSalesRevenueNet" xlink:title="Definition : loc_us-gaap_RevenuesAbstract to loc_us-gaap_OtherSalesRevenueNet" xlink:type="arc" use="optional" order="50" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_OperatingExpensesAbstract" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_OperatingExpensesAbstract" xlink:type="arc" use="optional" order="50" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="loc_us-gaap_SalesRevenueNet" xlink:title="SalesRevenueNet" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract" xlink:to="loc_us-gaap_SalesRevenueNet" xlink:title="Definition : loc_us-gaap_RevenuesAbstract to loc_us-gaap_SalesRevenueNet" xlink:type="arc" use="optional" order="60" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss" xlink:title="OperatingIncomeLoss" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_OperatingIncomeLoss" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_OperatingIncomeLoss" xlink:type="arc" use="optional" order="60" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_BusinessTaxAndRelatedSurcharges" xlink:label="loc_ctrp_BusinessTaxAndRelatedSurcharges" xlink:title="BusinessTaxAndRelatedSurcharges" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract" xlink:to="loc_ctrp_BusinessTaxAndRelatedSurcharges" xlink:title="Definition : loc_us-gaap_RevenuesAbstract to loc_ctrp_BusinessTaxAndRelatedSurcharges" xlink:type="arc" use="optional" order="70" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="loc_us-gaap_InvestmentIncomeInterest" xlink:title="InvestmentIncomeInterest" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_InvestmentIncomeInterest" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_InvestmentIncomeInterest" xlink:type="arc" use="optional" order="70" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_RevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:label="loc_ctrp_RevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:title="RevenuesNetOfBusinessTaxAndRelatedSurcharges" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract" xlink:to="loc_ctrp_RevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:title="Definition : loc_us-gaap_RevenuesAbstract to loc_ctrp_RevenuesNetOfBusinessTaxAndRelatedSurcharges" xlink:type="arc" use="optional" order="80" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense" xlink:title="InterestExpense" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_InterestExpense" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_InterestExpense" xlink:type="arc" use="optional" order="80" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense" xlink:title="OtherNonoperatingIncomeExpense" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_OtherNonoperatingIncomeExpense" xlink:type="arc" use="optional" order="90" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:title="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:type="arc" use="optional" order="100" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_IncomeTaxExpenseBenefit" xlink:type="arc" use="optional" order="110" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments" xlink:title="IncomeLossFromEquityMethodInvestments" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_IncomeLossFromEquityMethodInvestments" xlink:type="arc" use="optional" order="120" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss" xlink:title="ProfitLoss" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_ProfitLoss" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_ProfitLoss" xlink:type="arc" use="optional" order="130" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:title="NetIncomeLossAttributableToNoncontrollingInterest" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:type="arc" use="optional" order="140" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss" xlink:title="NetIncomeLoss" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_NetIncomeLoss" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_NetIncomeLoss" xlink:type="arc" use="optional" order="150" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:type="arc" use="optional" order="160" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:title="ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:type="arc" use="optional" order="170" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax" xlink:title="ComprehensiveIncomeNetOfTax" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_ComprehensiveIncomeNetOfTax" xlink:type="arc" use="optional" order="180" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_EarningsPerShareAbstract" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_EarningsPerShareAbstract" xlink:type="arc" use="optional" order="190" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:type="arc" use="optional" order="200" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="loc_us-gaap_ShareBasedCompensationAbstract" xlink:title="Definition : loc_us-gaap_StatementLineItems to loc_us-gaap_ShareBasedCompensationAbstract" xlink:type="arc" use="optional" order="210" />
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.ctrip.com/role/DisclosurePrincipalAccountingPoliciesTables">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems" xlink:title="BusinessAcquisitionLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="ScheduleOfBusinessAcquisitionsByAcquisitionTable" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:type="arc" use="optional" order="8000" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_WingOnTravelMember" xlink:label="loc_ctrp_WingOnTravelMember" xlink:title="WingOnTravelMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_WingOnTravelMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_WingOnTravelMember" xlink:type="arc" use="optional" order="8000" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaap_BusinessAcquisitionAxis" xlink:title="Definition : loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable to loc_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" use="optional" order="8000" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="BusinessAcquisitionAcquireeDomain_1" xlink:title="BusinessAcquisitionAcquireeDomain_1" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="BusinessAcquisitionAcquireeDomain_1" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAxis to loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" use="optional" order="8001" />
    <link:loc xlink:type="locator" xlink:href="ctrp-20131231.xsd#ctrp_EzTravelMember" xlink:label="loc_ctrp_EzTravelMember" xlink:title="EzTravelMember" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="loc_ctrp_EzTravelMember" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionAcquireeDomain to loc_ctrp_EzTravelMember" xlink:type="arc" use="optional" order="8001" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:title="ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:type="arc" use="optional" order="8001" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:title="ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="loc_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:title="Definition : loc_us-gaap_BusinessAcquisitionLineItems to loc_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:type="arc" use="optional" order="8002" />
  </link:definitionLink>
</link:linkbase>
