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

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-08-24</periodOfReport>

    <issuer>
        <issuerCik>0000815017</issuerCik>
        <issuerName>PACIFICNET INC</issuerName>
        <issuerTradingSymbol>PACT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001116415</rptOwnerCik>
            <rptOwnerName>SINO MART MANAGEMENT LTD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CHOSAM TONG, 16E, MEI ON IND. BLDG.</rptOwnerStreet1>
            <rptOwnerStreet2>17 KUNG YIP STREET</rptOwnerStreet2>
            <rptOwnerCity>KWAI CHUNG, NT, HONG KONG</rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001215232</rptOwnerCik>
            <rptOwnerName>TONG CHOSAM</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>16E, MEI ON INDUSTRIAL BLDG.</rptOwnerStreet1>
            <rptOwnerStreet2>17 KUNG YIP ST.</rptOwnerStreet2>
            <rptOwnerCity>KWAI CHUNG, NT, HONG KONG</rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></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, par value $0.0001, per share</value>
            </securityTitle>
            <transactionDate>
                <value>2005-04-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>600000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.45</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1830000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The shares were acquired by Sino Mart Management Ltd.  As the sole shareholder, officer and director of Sino Mart, Mr. Cho Sam Tong beneficially owns the shares directly owned by Sino Mart Management Ltd.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ ChoSam Tong. Sole Director Sino Mart Management Ltd.</signatureName>
        <signatureDate>2005-08-26</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ ChoSam Tong</signatureName>
        <signatureDate>2005-08-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
