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

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2008-10-24</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001420413</issuerCik>
        <issuerName>North Asia Investment CORP</issuerName>
        <issuerTradingSymbol>NHR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001319244</rptOwnerCik>
            <rptOwnerName>INTEGRATED CORE STRATEGIES (US) LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MILLENNIUM MANAGEMENT LLC</rptOwnerStreet1>
            <rptOwnerStreet2>666 FIFTH AVENUE, 8TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10103-0899</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001273087</rptOwnerCik>
            <rptOwnerName>MILLENNIUM MANAGEMENT LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>666 FIFTH AVENUE, 8TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10103-0899</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>May be deemed a group member.</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001017456</rptOwnerCik>
            <rptOwnerName>ENGLANDER ISRAEL A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MILLENNIUM MANAGEMENT, L.L.C.</rptOwnerStreet1>
            <rptOwnerStreet2>666 FIFTH AVENUE, 8TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10103-0899</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>May be deemed a group member.</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Ordinary Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>937680</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">As of the date of this filing, Integrated Core Strategies (US) LLC, a Delaware limited liability company (&quot;Integrated Core Strategies&quot;), is the beneficial owner of 937,680 ordinary shares, par value $0.0001 per share (&quot;Ordinary Shares&quot;) of North Asia Investment Corporation (the &quot;Issuer&quot;).</footnote>
        <footnote id="F2">As of the date of this filing, Integrated Core Strategies holds 873,680 warrants to purchase the Issuer's Ordinary Shares at a price of $7.50 per share (&quot;Warrants&quot;), which are currently not exercisable. The Warrants will become exercisable on the later of the Issuer's completion of a business combination and July 23, 2009, provided that certain conditions are met.  The Warrants will expire on July 22, 2013, or earlier upon redemption. As of the date of this filing, the Issuer has not announced the completion of a business combination.</footnote>
        <footnote id="F3">The Ordinary Shares and Warrants were acquired though an intercompany transfer between Millenco LLC, a Delaware limited liability company (&quot;Millenco&quot;), and Integrated Core Strategies, each of which is wholly-owned by the same entity.</footnote>
        <footnote id="F4">In certain cases, the Ordinary Shares and Warrants are held as part of the Issuer's units, which consist of one Ordinary Share and one Warrant.</footnote>
        <footnote id="F5">Millennium Management LLC, a Delaware limited liability company (&quot;Millennium Management&quot;), is the general partner of Integrated Holding Group LP, a Delaware limited partnership (&quot;Integrated Holding Group&quot;), which is the managing member of Integrated Core Strategies, and consequently may be deemed to have shared voting control and investment discretion over securities owned by Integrated Core Strategies.  Israel A. Englander (&quot;Mr. Englander&quot;) is the managing member of Millennium Management.  As a result, Mr. Englander may be deemed to have shared voting control and investment discretion over securities deemed to be beneficially owned by Millennium Management. The foregoing should not be construed in and of itself as an admission by Millennium Management or Mr. Englander as to beneficial ownership of the shares owned by Integrated Core Strategies.</footnote>
    </footnotes>

    <remarks>INTEGRATED CORE STRATEGIES (US) LLC, By:  Integrated Holding Group LP, its managing member, By:  Millennium Management LLC, its general partner, By:  David Nolan, Co-President</remarks>

    <ownerSignature>
        <signatureName>David Nolan, Co-President</signatureName>
        <signatureDate>2008-10-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
