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

    <schemaVersion>X0304</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-12-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001088787</issuerCik>
        <issuerName>China Direct Industries, Inc.</issuerName>
        <issuerTradingSymbol>CDII</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001373469</rptOwnerCik>
            <rptOwnerName>Wang Yuejian</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CHINA DIRECT INDUSTRIES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>431 FAIRWAY DRIVE, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>DEERFIELD BEACH</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33441</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2011-12-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>25000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>447032</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Amount does not include 4,000,000 shares of the Issuer's common stock held by Dragon Fund Management LLC (&quot;Dragon Fund&quot;), an entity in which the reporting person owns 1% of the membership interests and holds 50% of the voting control. The reporting person disclaims beneficial ownership of the Issuer's securities owned by Dragon Fund except to the extent of his pecuniary interest in Dragon Fund and this filing should not be construed as an admission that the reporting person is the beneficial owner of these securities.</footnote>
        <footnote id="F2">Restricted stock granted pursuant to the Issuer's 2008 Executive Stock Incentive Plan and approved by the Compensation Committee of the Issuer's Board of Directors. The Restricted stock will vest on February 15, 2011.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Yuejian (James) Wang</signatureName>
        <signatureDate>2012-01-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
