-----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,
 A9DiatNA5szIWLwcAdEy/9Q0hHMYmRn3UlEnxjq2ke6REk6GGZ8cZQ70DfLlXf+w
 R+9ZSKVvS9a4CLQhvlh5eg==

<SEC-DOCUMENT>0001181431-03-011796.txt : 20030627
<SEC-HEADER>0001181431-03-011796.hdr.sgml : 20030627
<ACCEPTANCE-DATETIME>20030627112425
ACCESSION NUMBER:		0001181431-03-011796
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030623
FILED AS OF DATE:		20030627

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GIANNETTO JOHN
		CENTRAL INDEX KEY:			0001248721

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13617
		FILM NUMBER:		03759989

	BUSINESS ADDRESS:	
		STREET 1:		53 CHESTNUT STREET
		CITY:			WAKEFIELD
		STATE:			MA
		ZIP:			01880

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LIFELINE SYSTEMS INC
		CENTRAL INDEX KEY:			0000720195
		STANDARD INDUSTRIAL CLASSIFICATION:	RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT [3663]
		IRS NUMBER:				042537528
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		111 LAWRENCE ST
		CITY:			FRAMINGHAM
		STATE:			MA
		ZIP:			02139
		BUSINESS PHONE:		6176791000

	MAIL ADDRESS:	
		STREET 1:		111 LAWRENCE ST
		CITY:			FRAMINGHAM
		STATE:			MA
		ZIP:			02139
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>rrd11658.xml
<DESCRIPTION>FORM 3 DATED 6/23/03
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>3</documentType>
<periodOfReport>2003-06-23</periodOfReport>
    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000720195</issuerCik>
        <issuerName>LIFELINE SYSTEMS INC</issuerName>
        <issuerTradingSymbol>LIFE</issuerTradingSymbol></issuer>
<reportingOwner>
<reportingOwnerId>
            <rptOwnerCik>0001248721</rptOwnerCik>
            <rptOwnerName>GIANNETTO JOHN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector>
<isOfficer>0</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>1</isOther>
<officerTitle></officerTitle>
<otherText>Vice President, Operations</otherText></reportingOwnerRelationship></reportingOwner>
<nonDerivativeSecurity>
<securityTitle>
<value>Common Stock</value></securityTitle>
<transactionAmounts>
<transactionShares>
<value>334</value></transactionShares></transactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></nonDerivativeSecurity>
<nonDerivativeSecurity>
<securityTitle>
<value>Common Stock</value></securityTitle>
<transactionAmounts>
<transactionShares>
<value>1456</value></transactionShares></transactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>I</value></directOrIndirectOwnership>
<natureOfOwnership>
<value>401(k) Plan</value></natureOfOwnership></ownershipNature></nonDerivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Stock Option</value></securityTitle>
<conversionOrExercisePrice>
<value>5</value></conversionOrExercisePrice>
<exerciseDate>
<value>1995-02-11</value></exerciseDate>
<expirationDate>
<value>2004-02-11</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>400</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Stock Option</value></securityTitle>
<conversionOrExercisePrice>
<value>6.5</value></conversionOrExercisePrice>
<exerciseDate>
<value>1996-02-10</value></exerciseDate>
<expirationDate>
<value>2005-02-10</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>1000</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Stock Option</value></securityTitle>
<conversionOrExercisePrice>
<value>9.0625</value></conversionOrExercisePrice>
<exerciseDate>
<value>2001-02-18</value></exerciseDate>
<expirationDate>
<value>2010-02-18</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>2000</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Stock Option</value></securityTitle>
<conversionOrExercisePrice>
<value>12.125</value></conversionOrExercisePrice>
<exerciseDate>
<value>1997-02-16</value></exerciseDate>
<expirationDate>
<value>2006-02-16</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>1500</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Stock Option</value></securityTitle>
<conversionOrExercisePrice>
<value>13.375</value></conversionOrExercisePrice>
<exerciseDate>
<value>2002-02-07</value></exerciseDate>
<expirationDate>
<value>2011-02-07</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>1500</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Stock Option</value></securityTitle>
<conversionOrExercisePrice>
<value>14.125</value></conversionOrExercisePrice>
<exerciseDate>
<value>2001-08-24</value></exerciseDate>
<expirationDate>
<value>2010-08-24</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>2100</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Stock Option</value></securityTitle>
<conversionOrExercisePrice>
<value>16.75</value></conversionOrExercisePrice>
<exerciseDate>
<value>1998-02-13</value></exerciseDate>
<expirationDate>
<value>2007-02-13</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>1500</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Stock Option</value></securityTitle>
<conversionOrExercisePrice>
<value>21.135</value></conversionOrExercisePrice>
<exerciseDate>
<value>2004-02-05</value></exerciseDate>
<expirationDate>
<value>2013-02-05</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>2100</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Stock Option</value></securityTitle>
<conversionOrExercisePrice>
<value>23.545</value></conversionOrExercisePrice>
<exerciseDate>
<value>2003-02-06</value></exerciseDate>
<expirationDate>
<value>2012-02-06</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>1500</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Stock Option</value></securityTitle>
<conversionOrExercisePrice>
<value>24</value></conversionOrExercisePrice>
<exerciseDate>
<value>1999-02-13</value></exerciseDate>
<expirationDate>
<value>2008-02-13</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>1750</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<ownerSignature>
<signatureName>John A. Giannetto</signatureName>
<signatureDate>2003-06-26</signatureDate></ownerSignature></ownershipDocument>


</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----