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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 Co6PamV0fcVQ4+OACN4QQi/ZoydZ9FXb/eYOqKbF3BgPb9vm3uVdhK0eKakFCtYh
 vUMh3sjt8EeaTE7Bdp6mPA==

<SEC-DOCUMENT>0001102624-07-000013.txt : 20070117
<SEC-HEADER>0001102624-07-000013.hdr.sgml : 20070117
<ACCEPTANCE-DATETIME>20070117160518
ACCESSION NUMBER:		0001102624-07-000013
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070103
FILED AS OF DATE:		20070117
DATE AS OF CHANGE:		20070117

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CASTAGNA GARY L
		CENTRAL INDEX KEY:			0001189741

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19944
		FILM NUMBER:		07535116

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		847 394 8730

	MAIL ADDRESS:	
		STREET 1:		ONE NORTH ARLINGTON
		STREET 2:		1500 WEST SHURE DR SUITE 500
		CITY:			ARLINGTON HEIGHTS
		STATE:			IL
		ZIP:			60004-7803

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			M WAVE INC
		CENTRAL INDEX KEY:			0000883842
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPONENTS, NEC [3679]
		IRS NUMBER:				363809819
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		216 EVERGREEN ST
		CITY:			BENSENVILLE ILLINOIS
		STATE:			IL
		ZIP:			60106
		BUSINESS PHONE:		6308609542

	MAIL ADDRESS:	
		STREET 1:		475 INDUSTRIAL BLVD
		CITY:			W CHICAGO
		STATE:			IL
		ZIP:			60106
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-01-03</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000883842</issuerCik>
        <issuerName>M WAVE INC</issuerName>
        <issuerTradingSymbol>MWAVD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001189741</rptOwnerCik>
            <rptOwnerName>CASTAGNA GARY L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11533 FRANKLINE AVE 2ND FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>FRANKLIN PARK</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60131</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.41</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-01-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>11592</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.41</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2007-01-03</value>
            </exerciseDate>
            <expirationDate>
                <value>2012-01-03</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>11592</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>55536</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <remarks>Annual stock option award under 2003 Stock Incentive Plan and is immediately exercisable on 01/03/07</remarks>

    <ownerSignature>
        <signatureName>Gary L Castagna</signatureName>
        <signatureDate>2007-01-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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