<SUBMISSION>
<ACCESSION-NUMBER>0000310354-05-000052
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20050913
<FILING-DATE>20050915
<DATE-OF-FILING-DATE-CHANGE>20050915
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>STANDEX INTERNATIONAL CORP/DE/
<CIK>0000310354
<ASSIGNED-SIC>3580
<IRS-NUMBER>310596149
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0630
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>6 MANOR PKWY
<CITY>SALEM
<STATE>NH
<ZIP>03079
<PHONE>6038939701
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>6 MANOR PARKWAY
<CITY>SALEM
<STATE>NH
<ZIP>03079
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>CANNON CHARLES H JR
<CIK>0001051324
<ASSIGNED-SIC>2800
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-07233
<FILM-NUMBER>051086768
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>200 E RANDOLPH DR
<CITY>CHICAGO
<STATE>IL
<ZIP>60601
<PHONE>3128616000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>200 E RANDOLPH DRIVE
<CITY>CHICAGO
<STATE>IL
<ZIP>60601
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-09-13</periodOfReport>

    <issuer>
        <issuerCik>0000310354</issuerCik>
        <issuerName>STANDEX INTERNATIONAL CORP/DE/</issuerName>
        <issuerTradingSymbol>SXI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001051324</rptOwnerCik>
            <rptOwnerName>CANNON CHARLES H JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>STANDEX INTERNATIONAL CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>6 MANOR PARKWAY</rptOwnerStreet2>
            <rptOwnerCity>SALEM</rptOwnerCity>
            <rptOwnerState>NH</rptOwnerState>
            <rptOwnerZipCode>03079-</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock   Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>20.22</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-09-13</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>550</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20.22</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2008-09-13</value>
            </exerciseDate>
            <expirationDate>
                <value>2008-09-13</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>550</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>550</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Contingent purchase of Phantom Stock of the Company pursuant to the 1998 Long Term Incentive Plan vesting three years after day of purchase in the form of common stock.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Deborah A. Rosen</signatureName>
        <signatureDate>2005-09-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
