-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 TGUtsIZrVgxBePeo1tiKwXd8mOsJNaxxkBtZ/5QACZEvypavuYSehTfXO5Pg9pH4
 sYdK3bMuWB6DcpAxxBbOuA==

<SEC-DOCUMENT>0000012355-08-000072.txt : 20080421
<SEC-HEADER>0000012355-08-000072.hdr.sgml : 20080421
<ACCEPTANCE-DATETIME>20080421165817
ACCESSION NUMBER:		0000012355-08-000072
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080417
FILED AS OF DATE:		20080421
DATE AS OF CHANGE:		20080421

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BOWLES BARBARA L
		CENTRAL INDEX KEY:			0001034439
		STATE OF INCORPORATION:			TN
		FISCAL YEAR END:			0131

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	333-03593
		FILM NUMBER:		08767425

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		6158554000

	MAIL ADDRESS:	
		STREET 1:		100 MISSION RIDGE
		STREET 2:		C/O DOLLAR GENERAL CORP
		CITY:			GOODLETTSVILLE
		STATE:			TN
		ZIP:			37072

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACK & DECKER CORP
		CENTRAL INDEX KEY:			0000012355
		STANDARD INDUSTRIAL CLASSIFICATION:	METALWORKING MACHINERY & EQUIPMENT [3540]
		IRS NUMBER:				520248090
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		701 E JOPPA RD
		CITY:			TOWSON
		STATE:			MD
		ZIP:			21286
		BUSINESS PHONE:		4107163900

	MAIL ADDRESS:	
		STREET 1:		701 EAST JOPPA ROAD
		STREET 2:		MAIL STOP TW 290
		CITY:			TOWSON
		STATE:			MD
		ZIP:			21286

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BLACK & DECKER MANUFACTURING CO
		DATE OF NAME CHANGE:	19850206
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-04-17</periodOfReport>

    <issuer>
        <issuerCik>0000012355</issuerCik>
        <issuerName>BLACK &amp; DECKER CORP</issuerName>
        <issuerTradingSymbol>BDK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001034439</rptOwnerCik>
            <rptOwnerName>BOWLES BARBARA L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE BLACK &amp; DECKER CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>701 EAST JOPPA  RD</rptOwnerStreet2>
            <rptOwnerCity>TOWSON</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>21286</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2008-04-17</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1483</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12050</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-04-17</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>164.8681</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>66.72</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>164.8681</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1194.3716</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The referenced shares were acquired by the reporting person as a participant in the Non-Employee Directors Stock Plan.</footnote>
        <footnote id="F2">The shares of Phantom Stock convert on a 1 for 1 basis.</footnote>
        <footnote id="F3">The referenced Phantom Stock was acquired pursuant to the deferred compensation provisions of the Non-Employee Directors Stock Plan (the &quot;Stock Plan&quot;) and will be settled in shares of Common Stock under the terms of the Stock Plan upon the reporting person's termination as a director.  The reporting person elected to acquire the Phantom Stock in lieu of Common Stock otherwise payable by the Corporation to the reporting person.</footnote>
        <footnote id="F4">Includes 20.4483 shares of Phantom Stock acquired  pursuant to a dividend reinvestment feature of the Stock Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Natalie A. Shields,  Attorney-in-Fact</signatureName>
        <signatureDate>2008-04-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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