<SEC-DOCUMENT>0000030554-11-000015.txt : 20111209
<SEC-HEADER>0000030554-11-000015.hdr.sgml : 20111209
<ACCEPTANCE-DATETIME>20111209122819
ACCESSION NUMBER:		0000030554-11-000015
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20111201
FILED AS OF DATE:		20111209
DATE AS OF CHANGE:		20111209

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			THOMAS LEE M
		CENTRAL INDEX KEY:			0001090724
		STANDARD INDUSTRIAL CLASSIFICATION:	LUMBER & WOOD PRODUCTS (NO FURNITURE) [2400]
		STATE OF INCORPORATION:			GA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-00815
		FILM NUMBER:		111252678

	MAIL ADDRESS:	
		STREET 1:		133 PEACHTREE ST NE
		STREET 2:		41ST FL
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30303

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DUPONT E I DE NEMOURS & CO
		CENTRAL INDEX KEY:			0000030554
		STANDARD INDUSTRIAL CLASSIFICATION:	PLASTIC MATERIAL, SYNTH RESIN/RUBBER, CELLULOS (NO GLASS) [2820]
		IRS NUMBER:				510014090
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1007 MARKET ST
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19898
		BUSINESS PHONE:		3027741000

	MAIL ADDRESS:	
		STREET 1:		1007 MARKET ST
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19898
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0204</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2011-12-01</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000030554</issuerCik>
        <issuerName>DUPONT E I DE NEMOURS &amp; CO</issuerName>
        <issuerTradingSymbol>DD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001090724</rptOwnerCik>
            <rptOwnerName>THOMAS LEE M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1007 MARKET STREET</rptOwnerStreet1>
            <rptOwnerStreet2>D-9000</rptOwnerStreet2>
            <rptOwnerCity>WILMINGTON</rptOwnerCity>
            <rptOwnerState>DE</rptOwnerState>
            <rptOwnerZipCode>19898</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Owned by Spouse</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Mary E. Bowler, by Power of Attorney</signatureName>
        <signatureDate>2011-12-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>ltpoa.htm
<TEXT>
<HTML><BODY><PRE>



























Securities and Exchange Commission

100 F Street, N.E.

Judiciary Plaza

Washington, DC  20549



Ladies and Gentlemen:



  I hereby authorize Mary E. Bowler, Corporate Secretary and Corporate

Counsel, or any Assistant Secretary, or their respective successors in office, to sign and

file on my behalf SEC Forms 3, 4 and 5 or any other SEC forms relating to changes in

beneficial ownership of securities of E. I. du Pont de Nemours and Company.  This

authorization shall remain in effect as long as I am a director of DuPont unless it is

earlier specifically revoked by me.



       Very truly yours,



       /s/ Lee M. Thomas



       Lee M. Thomas

            Director





       12/3/11

       Date















</PRE></BODY></HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
