-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 CFETGvW7pILoI3ZGGzuk5opIdF3fEoeylSY0PZgRhX9UzfxMFvPjFB4a8JQbM6Qo
 ntd2ueooDYiac4wOwvyqqw==

<SEC-DOCUMENT>0001209191-07-018713.txt : 20070320
<SEC-HEADER>0001209191-07-018713.hdr.sgml : 20070320
<ACCEPTANCE-DATETIME>20070320135425
ACCESSION NUMBER:		0001209191-07-018713
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070316
FILED AS OF DATE:		20070320
DATE AS OF CHANGE:		20070320

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FRASHIER GARY E
		CENTRAL INDEX KEY:			0001215914

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-06533
		FILM NUMBER:		07705792

	MAIL ADDRESS:	
		STREET 1:		C/O MANAGEMENT ASSOCIATES
		STREET 2:		PMB 264 28295 IH-10 WEST SUITE 4
		CITY:			BOERNE
		STATE:			TX
		ZIP:			78006 6515

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BOSTON LIFE SCIENCES INC /DE
		CENTRAL INDEX KEY:			0000094784
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				870277826
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		85 MAIN STREET
		CITY:			HOPKINTON
		STATE:			MA
		ZIP:			01748
		BUSINESS PHONE:		508-497-2360

	MAIL ADDRESS:	
		STREET 1:		85 MAIN STREET
		CITY:			HOPKINTON
		STATE:			MA
		ZIP:			01748

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GREENWICH PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STRATEGIC MEDICAL RESEARCH CORP /DE
		DATE OF NAME CHANGE:	19790521
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>b64634gf.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-03-16</periodOfReport>

    <issuer>
        <issuerCik>0000094784</issuerCik>
        <issuerName>BOSTON LIFE SCIENCES INC /DE</issuerName>
        <issuerTradingSymbol>BLSI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001215914</rptOwnerCik>
            <rptOwnerName>FRASHIER GARY E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BOSTON LIFE SCIENCES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>85 MAIN STREET</rptOwnerStreet2>
            <rptOwnerCity>HOPKINTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01748</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>2.49</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-03-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2017-03-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25000</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Options to purchase 10,000 shares of common stock were granted under the Company's 2005 Stock Incentive Plan. The options immediately vest as to 1/2 of the shares with the remaining 1/2 of the shares vesting in equal monthly installments over two years.</footnote>
        <footnote id="F2">Includes multiple option grants with different exercise prices and vesting dates.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Kenneth L. Rice, Attorney-in-Fact</signatureName>
        <signatureDate>2007-03-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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