<?xml version="1.0"?>

<ownershipDocument>

    <documentType>4</documentType>

    <periodOfReport>2003-07-11</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001075247</issuerCik>
        <issuerName>CHINA BROADBAND CORP</issuerName>
        <issuerTradingSymbol>CBBD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001160374</rptOwnerCik>
            <rptOwnerName>HEYSEL MATTHEW</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeSecurity>
        <securityTitle>
            <value>Stock Option</value>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>0.1</value>
        </conversionOrExercisePrice>
        <transactionDate>
            <value>2003-07-11</value>
        </transactionDate>
        <deemedExecutionDate>
            <value>2003-07-11</value>
        </deemedExecutionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>A</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
            <footnoteId id="F2"/>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>1620000</value>
            </transactionShares>
            <transactionValue>
                <value>0.1</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <exerciseDate>
            <value>2003-07-11</value>
        </exerciseDate>
        <expirationDate>
            <value>2005-01-11</value>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Common Stock</value>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>1620000</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>1620000</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>I</value>
            </directOrIndirectOwnership>
            <natureOfOwnership>
                <value>MH Financial Management</value>
                <footnoteId id="F1"/>
            </natureOfOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <footnotes>
        <footnote id="F1">Mr.Heysel owns 51% of the issued and outstanding shares of Big Sky Holdings and 25% of the issued and outstanding of MH Financial Management and is an officer and director of both corporations.</footnote>
        <footnote id="F2">MH Financial Management entered into a Stock Option Agreement with two of China Broadband Corp.'s shareholders under which MH Financial Management has the right to purchase 1,620,000 shares at a price of $0.10 per share until January 11, 2005.  Underthe terms of the agreement, MH Financial Management has the right to vote the shares at all annual and special meetings of China Broadband Corp.'s shareholders during the term of the agreement.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Mitzi Murray- Attorney-in-Fact</signatureName>
        <signatureDate>2003-07-21</signatureDate>
    </ownerSignature>

</ownershipDocument>

