<SEC-DOCUMENT>0001209191-13-015797.txt : 20130312
<SEC-HEADER>0001209191-13-015797.hdr.sgml : 20130312
<ACCEPTANCE-DATETIME>20130312151418
ACCESSION NUMBER:		0001209191-13-015797
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20130311
FILED AS OF DATE:		20130312
DATE AS OF CHANGE:		20130312

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NELSON DAVID C.
		CENTRAL INDEX KEY:			0001443856

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15321
		FILM NUMBER:		13683814

	MAIL ADDRESS:	
		STREET 1:		200 COMMERCE STREET
		CITY:			SMITHFIELD
		STATE:			VA
		ZIP:			23430

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SMITHFIELD FOODS INC
		CENTRAL INDEX KEY:			0000091388
		STANDARD INDUSTRIAL CLASSIFICATION:	MEAT PACKING PLANTS [2011]
		IRS NUMBER:				520845861
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			0427

	BUSINESS ADDRESS:	
		STREET 1:		200 COMMERCE STREET
		STREET 2:		EXECUTIVE OFFICE BUILDING
		CITY:			SMITHFIELD
		STATE:			VA
		ZIP:			23430
		BUSINESS PHONE:		7573653000

	MAIL ADDRESS:	
		STREET 1:		200 COMMERCE STREET
		STREET 2:		EXECUTIVE OFFICE BUILDING
		CITY:			SMITHFIELD
		STATE:			VA
		ZIP:			23430

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LIBERTY EQUITIES CORP
		DATE OF NAME CHANGE:	19710221

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LIBERTY REAL ESTATE TRUST
		DATE OF NAME CHANGE:	19661113
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2013-03-11</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000091388</issuerCik>
        <issuerName>SMITHFIELD FOODS INC</issuerName>
        <issuerTradingSymbol>SFD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001443856</rptOwnerCik>
            <rptOwnerName>NELSON DAVID C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 COMMERCE STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SMITHFIELD</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>23430</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2013-03-11</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>953.3898</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>25.96</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>953.3898</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>36305.311</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">1 for 1</footnote>
        <footnote id="F2">The phantom stock becomes payable in shares of Company common stock upon termination of service as a director either in a lump sum or in annual installments over a period of at least two years and not more than ten years as per the director's deferral election. Notwithstanding the foregoing, after termination of service, the phantom stock may, at the election of the director, be converted into one or more &quot;deemed investments&quot; approved by the Company's Nominating and Governance Committee.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Michael H. Cole, as attorney-in-fact</signatureName>
        <signatureDate>2013-03-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
