-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Avg6gxw+6e16e07xfIBB0NZXLS47m8RflXFXRNQ/zuJGBjbDh5NCQNWjdS512wZM
 wNo5N/OdJm/NtCyuyEoqWQ==

<SEC-DOCUMENT>0000102212-10-000002.txt : 20100202
<SEC-HEADER>0000102212-10-000002.hdr.sgml : 20100202
<ACCEPTANCE-DATETIME>20100202132624
ACCESSION NUMBER:		0000102212-10-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100131
FILED AS OF DATE:		20100202
DATE AS OF CHANGE:		20100202

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UNIVEST CORP OF PENNSYLVANIA
		CENTRAL INDEX KEY:			0000102212
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				231886144
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		14 NORTH MAIN STREET
		STREET 2:		P. O. BOX 64197
		CITY:			SOUDERTON
		STATE:			PA
		ZIP:			18964
		BUSINESS PHONE:		2157212400

	MAIL ADDRESS:	
		STREET 1:		14 NORTH MAIN STREET
		STREET 2:		P. O. BOX 64197
		CITY:			SOUDERTON
		STATE:			PA
		ZIP:			18964

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BROBST DUANE J
		CENTRAL INDEX KEY:			0001454969
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-07617
		FILM NUMBER:		10566102

	BUSINESS ADDRESS:	
		STREET 1:		14 NORTH MAIN STREET
		STREET 2:		P.O. BOX 64197
		CITY:			SOUDERTON
		STATE:			PA
		ZIP:			18964
		BUSINESS PHONE:		215-721-2400

	MAIL ADDRESS:	
		STREET 1:		14 NORTH MAIN STREET
		STREET 2:		P.O. BOX 64197
		CITY:			SOUDERTON
		STATE:			PA
		ZIP:			18964
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-01-31</periodOfReport>

    <issuer>
        <issuerCik>0000102212</issuerCik>
        <issuerName>UNIVEST CORP OF PENNSYLVANIA</issuerName>
        <issuerTradingSymbol>UVSP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001454969</rptOwnerCik>
            <rptOwnerName>BROBST DUANE J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>363 HIGH STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SOUDERTON</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>18964</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive VP</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>COMMON</value>
            </securityTitle>
            <transactionDate>
                <value>2010-01-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3939</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20651.7273</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>COMMON</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20651.7273</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">RESTRICTED STOCK AWARD; VESTED IN THREE (3) YEARS.</footnote>
        <footnote id="F2">DOES INCLUDE 1,354.7273 SHARES ACQUIRED ON OR AFTER AUGUST 15, 1996 THROUGH THE DIVIDEND REINVESTMENT PLAN AND EMPLOYEE STOCK PURCHASE PLAN.</footnote>
        <footnote id="F3">DOES INCLUDE 7,175 SHARES OF RESTRICTED STOCK.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Jeffrey M. Schweitzer</signatureName>
        <signatureDate>2010-02-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----