-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 FNxwwFYZRkb700ZUG7EQKmIrvkvGaYrzMSKqTHHDjqPq0QuISjSj48tRv+G+M6+u
 2abAqPd7/++YRMnVVcaqMw==

<SEC-DOCUMENT>0001258995-03-000001.txt : 20030828
<SEC-HEADER>0001258995-03-000001.hdr.sgml : 20030828
<ACCEPTANCE-DATETIME>20030828172641
ACCESSION NUMBER:		0001258995-03-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20000827
FILED AS OF DATE:		20030828

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MEALY MARK W
		CENTRAL INDEX KEY:			0001258995

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13198
		FILM NUMBER:		03871915

	MAIL ADDRESS:	
		STREET 1:		301 S COLLEGE STREET
		STREET 2:		4TH FL NC8905
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28288-8905

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MORTON INDUSTRIAL GROUP INC
		CENTRAL INDEX KEY:			0000064247
		STANDARD INDUSTRIAL CLASSIFICATION:	PLASTICS PRODUCTS, NEC [3089]
		IRS NUMBER:				380811650
		STATE OF INCORPORATION:			GA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1021 WEST BIRCHWOOD STREET
		CITY:			MORTON
		STATE:			IL
		ZIP:			61550
		BUSINESS PHONE:		3092667176

	MAIL ADDRESS:	
		STREET 1:		1021 WEST BIRCHWOOD STREET
		CITY:			MORTON
		STATE:			IL
		ZIP:			61550

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MLX CORP /GA
		DATE OF NAME CHANGE:	19960823

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MCLOUTH STEEL CORP
		DATE OF NAME CHANGE:	19850212
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2000-08-27</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000064247</issuerCik>
        <issuerName>MORTON INDUSTRIAL GROUP INC</issuerName>
        <issuerTradingSymbol>MGRP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001258995</rptOwnerCik>
            <rptOwnerName>MEALY MARK W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>301 S COLLEGE STREET</rptOwnerStreet1>
            <rptOwnerStreet2>4TH FL NC8905</rptOwnerStreet2>
            <rptOwnerCity>CHARLOTTE</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>28288-8905</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>

        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2003-08-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1021678</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.35</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1125251</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>

    </nonDerivativeTable>



    <ownerSignature>
        <signatureName>Mark W. Mealy</signatureName>
        <signatureDate>2003-08-27</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----