<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-05-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000095574</issuerCik>
        <issuerName>SUPERIOR UNIFORM GROUP INC</issuerName>
        <issuerTradingSymbol>SGC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001203009</rptOwnerCik>
            <rptOwnerName>BENSTOCK GERALD M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>SUPERIOR UNIFORM GROUP INC</rptOwnerStreet1>
            <rptOwnerStreet2>10055 SEMINOLE BLVD</rptOwnerStreet2>
            <rptOwnerCity>SEMINOLE</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33772</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman of the Board</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2008-05-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1391044</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Trust</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>22275</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>31576</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Trust</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>75240</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Wife</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Mr. Benstock owned the shares of common stock described herein by virtue of his being the sole beneficiary and trustee of the Gerald M. Benstock Trust u/a/d (the &quot;Trust&quot;), which Trust served as the general partner of Benstock-Superior Ltd., a Florida limited partnership (the &quot;Limited Partnership&quot;). The Trust transferred all of the general partnership units of the Limited Partnership as of the date reported herein for an aggregate purchase price of $42,750.  As a result of such transaction, neither the Trust nor Mr. Benstock beneficially owns the shares of common stock set forth herein.</footnote>
        <footnote id="F2">As trustee under deed of trust dated August 25, 1986.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Joan Petronella, POA</signatureName>
        <signatureDate>2008-05-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0202
4
2008-05-05
0
0000095574
SUPERIOR UNIFORM GROUP INC
SGC
0001203009
BENSTOCK GERALD M
SUPERIOR UNIFORM GROUP INC
10055 SEMINOLE BLVD
SEMINOLE
FL
33772
1
1
1
0
Chairman of the Board
Common Shares
2008-05-05
4
S
0
1391044
D
0
I
By Trust
Common Shares
22275
D
Common Shares
31576
I
By Trust
Common Shares
75240
I
Wife
Mr. Benstock owned the shares of common stock described herein by virtue of his being the sole beneficiary and trustee of the Gerald M. Benstock Trust u/a/d (the "Trust"), which Trust served as the general partner of Benstock-Superior Ltd., a Florida limited partnership (the "Limited Partnership"). The Trust transferred all of the general partnership units of the Limited Partnership as of the date reported herein for an aggregate purchase price of $42,750.  As a result of such transaction, neither the Trust nor Mr. Benstock beneficially owns the shares of common stock set forth herein.
As trustee under deed of trust dated August 25, 1986.
Joan Petronella, POA
2008-05-07