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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 40LUoRjvG6PX2n19BS5fIw==

<SEC-DOCUMENT>0001192482-07-000348.txt : 20070612
<SEC-HEADER>0001192482-07-000348.hdr.sgml : 20070612
<ACCEPTANCE-DATETIME>20070612112715
ACCESSION NUMBER:		0001192482-07-000348
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070608
FILED AS OF DATE:		20070612
DATE AS OF CHANGE:		20070612

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ISCO INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000888693
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		IRS NUMBER:				363688459
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1001 CAMBRIDGE DRIVE
		CITY:			ELK GROVE VILLAGE
		STATE:			IL
		ZIP:			60007
		BUSINESS PHONE:		8473919400

	MAIL ADDRESS:	
		STREET 1:		1001 CAMBRIDGE DRIVE
		CITY:			ELK GROVE VILLAGE
		STATE:			IL
		ZIP:			60007

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Pini Ralph
		CENTRAL INDEX KEY:			0001300592

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-22302
		FILM NUMBER:		07914105

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		8473919400

	MAIL ADDRESS:	
		STREET 1:		C/O ISCO INTERNATIONAL, INC.
		STREET 2:		451 KINGSTON COURT
		CITY:			MOUNT PROSPECT
		STATE:			IL
		ZIP:			60056
</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>2007-06-08</periodOfReport>

    <issuer>
        <issuerCik>0000888693</issuerCik>
        <issuerName>ISCO INTERNATIONAL INC</issuerName>
        <issuerTradingSymbol>ISO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001300592</rptOwnerCik>
            <rptOwnerName>Pini Ralph</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ISCO INTERNATIONAL, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1001 CAMBRIDGE DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ELK GROVE VILLAGE</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60007</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>2007-06-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>52500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>129000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Restricted shares awarded to Mr. Pini which will vest in four equal installments of 13,125 shares on each of September 15, 2007, December 15, 2007, March 15, 2008 and June 15, 2008.</footnote>
        <footnote id="F2">Mr. Pini did not pay for the shares in question; they were awarded to him pursuant to the Issuer's non-employee director compensation policy.  25,000 shares were awarded for his service as a Board member; 12,500 were awarded for his service as Chairman of the Board; 7,500 shares were awarded for his service on the Compensation Committee; and 7,500 shares were awarded for his service on the Corporate Governance Committee. The closing price of the subject shares on June 8, 2007 was $0.22 per share.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Frank Cesario, Attorney-in-Fact for Ralph Pini</signatureName>
        <signatureDate>2007-06-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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