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

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-10-18</periodOfReport>

    <issuer>
        <issuerCik>0000856979</issuerCik>
        <issuerName>BIOSECURE CORP</issuerName>
        <issuerTradingSymbol>BSUR.PK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001166842</rptOwnerCik>
            <rptOwnerName>GLOBAL TRADE FINANCE INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>PO BOX 410, NORTH MARIANA ISLANDS</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAIPAN, MP</rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode>96950</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $.001 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2005-10-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>15339148</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>.0007</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>36279148</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Global Trade Finance acquired these shares as a result of a transaction in 2003 with NewBridge Capital, Inc., an affiliate of the Issuer, whereby Global Trade Finance acquired all of the assets and liabilities of NewBridge. These shares of BioSecure were part of the assets and were not transferred to Global Trade Finance until October 18, 2005.</footnote>
        <footnote id="F2">Represents the carrying value for the shares  at the time of the transaction.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jon Lawver, Secretary</signatureName>
        <signatureDate>2005-11-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
