-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Jip3CiTO2TrSDATxzfl+rSAIDionLTCMOYkj8fi+yu9TqitKzq4sZ/B/R4ay12Yj
 BhsqFNLm2ndalrxX3KBpvw==

<SEC-DOCUMENT>0001158957-09-000179.txt : 20090921
<SEC-HEADER>0001158957-09-000179.hdr.sgml : 20090921
<ACCEPTANCE-DATETIME>20090921133831
ACCESSION NUMBER:		0001158957-09-000179
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090401
FILED AS OF DATE:		20090921
DATE AS OF CHANGE:		20090921

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Doherty Sharon Teresa
		CENTRAL INDEX KEY:			0001469426

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11900
		FILM NUMBER:		091078441

	MAIL ADDRESS:	
		STREET 1:		7525 WELLESLEY AVE
		CITY:			GARLAND
		STATE:			TX
		ZIP:			75044

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INTEGRATED SECURITY SYSTEMS INC
		CENTRAL INDEX KEY:			0000741114
		STANDARD INDUSTRIAL CLASSIFICATION:	COMMUNICATIONS EQUIPMENT, NEC [3669]
		IRS NUMBER:				752422983
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		8200 SPRINGWOOD DR STE 230
		CITY:			IRVING
		STATE:			TX
		ZIP:			75063
		BUSINESS PHONE:		9724448280

	MAIL ADDRESS:	
		STREET 1:		8200 SPRINGWOOD DR SUITE 230
		CITY:			IRVING
		STATE:			TX
		ZIP:			75063
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-04-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000741114</issuerCik>
        <issuerName>INTEGRATED SECURITY SYSTEMS INC</issuerName>
        <issuerTradingSymbol>IZZI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001469426</rptOwnerCik>
            <rptOwnerName>Doherty Sharon Teresa</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>7525 WELLESLEY AVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GARLAND</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75044</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.03</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2009-04-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1000000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2010-04-01</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-04-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1000000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">One third vest on 04/01/2010, one third vest on 04/01/2011, final one third vest on 04/01/2012.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Sharon Doherty</signatureName>
        <signatureDate>2009-09-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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