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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 KxtthgJufa3ROYrpnkGwK7Mso/uaQ6ZhbDDxLTRQPuW4e7E+YHwRC5Myu9+5b4RP
 Ds2LNKvW7eIN5+ov8hsM5w==

<SEC-DOCUMENT>0001192482-06-000145.txt : 20060224
<SEC-HEADER>0001192482-06-000145.hdr.sgml : 20060224
<ACCEPTANCE-DATETIME>20060224172535
ACCESSION NUMBER:		0001192482-06-000145
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060220
FILED AS OF DATE:		20060224
DATE AS OF CHANGE:		20060224

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:		06644224

	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

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:		451 KINGSTON CT
		CITY:			MOUNT PROSPECT
		STATE:			IL
		ZIP:			60056
		BUSINESS PHONE:		8473919400

	MAIL ADDRESS:	
		STREET 1:		451 KINGSTON COURT
		CITY:			MT 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>2006-02-20</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>2006-02-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>22500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>31500</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 two equal installments of 11,250 shares on each of March 15, 2006 and June 15, 2006.</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.  12,500 shares were awarded for his service as a Board member; 6,250 were awarded for his service as Chairman of the Corporate Governance Committee; and 3,750 shares were awarded for his service on the Compensation Committee.  The date of award was a federal holiday; on February 21, 2006, the next trading day, the closing price of the subject shares was $0.41 per share.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Frank Cesario, Attorney-in-Fact for Ralph Pini</signatureName>
        <signatureDate>2006-02-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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