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Document and Entity Information
 12 Months Ended
Dec. 31, 2015
shares
Entity Registrant Name Tuniu Corp
Entity Central Index Key 0001597095
Document Type 20-F
Document Period End Date Dec. 31, 2015
Amendment Flag false
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Filer Category Non-accelerated Filer
Document Fiscal Year Focus 2015
Document Fiscal Period Focus FY
Class A ordinary shares [Member]  
Entity Common Stock, Shares Outstanding 269,597,392
Class B ordinary shares [Member]  
Entity Common Stock, Shares Outstanding 17,373,500