<SEC-DOCUMENT>0000067590-17-000599.txt : 20170505
<SEC-HEADER>0000067590-17-000599.hdr.sgml : 20170505
<ACCEPTANCE-DATETIME>20170505163150
ACCESSION NUMBER:		0000067590-17-000599
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170503
FILED AS OF DATE:		20170505
DATE AS OF CHANGE:		20170505

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Prudential Short Duration High Yield Fund, Inc.
		CENTRAL INDEX KEY:			0001534880
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0531

	BUSINESS ADDRESS:	
		STREET 1:		655 BROAD STREET
		STREET 2:		17TH FLOOR
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102
		BUSINESS PHONE:		973-802-5032

	MAIL ADDRESS:	
		STREET 1:		655 BROAD STREET
		STREET 2:		17TH FLOOR
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Prudential Short Term High Yield Fund, Inc.
		DATE OF NAME CHANGE:	20111115

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Clapp Brian
		CENTRAL INDEX KEY:			0001578634

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-22632
		FILM NUMBER:		17818826

	MAIL ADDRESS:	
		STREET 1:		100 MULBERRY STREET
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-05-03</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001534880</issuerCik>
        <issuerName>Prudential Short Duration High Yield Fund, Inc.</issuerName>
        <issuerTradingSymbol>ISD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001578634</rptOwnerCik>
            <rptOwnerName>Clapp Brian</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>655 BROAD STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEWARK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Portfolio Manager</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-05-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>15.5472</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Agatha T. Ruddy, as POA for Brian Clapp</signatureName>
        <signatureDate>2017-05-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
