-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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MIC-Info: RSA-MD5,RSA,
 OkhkWUgcpxbkuB3k/v2ZWcWf4+ccvwKa1lGDwly2l8GH9yeftU5q50PdEqzujr4h
 2uQrKtLpvlwEGJqui355HA==

<SEC-DOCUMENT>0001408977-08-000001.txt : 20080128
<SEC-HEADER>0001408977-08-000001.hdr.sgml : 20080128
<ACCEPTANCE-DATETIME>20080128163647
ACCESSION NUMBER:		0001408977-08-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080128
FILED AS OF DATE:		20080128
DATE AS OF CHANGE:		20080128

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADDVANTAGE TECHNOLOGIES GROUP INC
		CENTRAL INDEX KEY:			0000874292
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-DURABLE GOODS [5000]
		IRS NUMBER:				731351610
		STATE OF INCORPORATION:			OK
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		1221 E. HOUSTON
		CITY:			BROKEN ARROW
		STATE:			OK
		ZIP:			74012
		BUSINESS PHONE:		9182519121

	MAIL ADDRESS:	
		STREET 1:		1605 E IOLA
		CITY:			BROKEN ARROW
		STATE:			OK
		ZIP:			74012

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ADDVANTAGE MEDIA GROUP INC /OK
		DATE OF NAME CHANGE:	19930328

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McGill Jim
		CENTRAL INDEX KEY:			0001408977

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10799
		FILM NUMBER:		08554483

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		9187433121

	MAIL ADDRESS:	
		STREET 1:		2121 SOUTH YORKTOWN #1103
		CITY:			TULSA
		STATE:			OK
		ZIP:			74114
</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>2008-01-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000874292</issuerCik>
        <issuerName>ADDVANTAGE TECHNOLOGIES GROUP INC</issuerName>
        <issuerTradingSymbol>aey</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001408977</rptOwnerCik>
            <rptOwnerName>McGill Jim</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2121 SOUTH YORKTOWN #1103</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TULSA</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>74114</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Commom Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-01-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.92</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/Jim McGill</signatureName>
        <signatureDate>2008-01-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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