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

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001165471</cik>
        <entityName>ALPHION CORP</entityName>
        <issuerAddress>
            <street1>196 PRINCETON HIGHTSTOWN ROAD</street1>
            <street2>BUILDING 1A</street2>
            <city>PRINCETON JUNCTION</city>
            <stateOrCountry>NJ</stateOrCountry>
            <zipCode>08550</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>609.936-9001</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Bharat</firstName>
                <middleName>P</middleName>
                <lastName>Dave</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>196 Princeton Hightstown Road</street1>
                <street2>Building 1A</street2>
                <city>Princeton Junction</city>
                <stateOrCountry>NJ</stateOrCountry>
                <zipCode>08550</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>President and Chief Executive Officer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ram</firstName>
                <lastName>Lyengar</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>196 Princeton Hightstown Road</street1>
                <street2>Building 1A</street2>
                <city>Princeton Junction</city>
                <stateOrCountry>NJ</stateOrCountry>
                <zipCode>08550</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Secretary</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Matthew</firstName>
                <lastName>Rosner</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>196 Princeton Hightstown Road</street1>
                <street2>Building 1A</street2>
                <city>Princeton Junction</city>
                <stateOrCountry>NJ</stateOrCountry>
                <zipCode>08550</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Chief Financial Officer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Fred</firstName>
                <lastName>Leonberger</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>196 Princeton Hightstown Road</street1>
                <street2>Building 1A</street2>
                <city>Princeton Junction</city>
                <stateOrCountry>NJ</stateOrCountry>
                <zipCode>08550</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Robert</firstName>
                <lastName>Ade</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>6496 Northwest 31st Way</street1>
                <city>Boca Raton</city>
                <stateOrCountry>FL</stateOrCountry>
                <zipCode>33496</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Diosdado</firstName>
                <lastName>Banatao</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>400 Hamilton Avenue</street1>
                <street2>Suite 230</street2>
                <city>Palo Alto</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94301</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>George</firstName>
                <lastName>Pavlov</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>400 Hamilton Avenue</street1>
                <street2>Suite 230</street2>
                <city>Palo Alto</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94301</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Arthur</firstName>
                <lastName>Tan</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>32/F Tower One Ayala Triangle</street1>
                <street2>Ayala Avenue</street2>
                <city>Makati City</city>
                <stateOrCountry>R6</stateOrCountry>
                <zipCode>1226</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Computers</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-12-24</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isOtherType>true</isOtherType>
            <descriptionOfOtherType>8% Secured Subordinated Convertible Promissory Notes and Warrants</descriptionOfOtherType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>10000000</totalOfferingAmount>
            <totalAmountSold>10000000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>11</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>ALPHION CORP</issuerName>
                <signatureName>/s/ Bharat P. Dave</signatureName>
                <nameOfSigner>Bharat P. Dave</nameOfSigner>
                <signatureTitle>President and Chief Executive Officer</signatureTitle>
                <signatureDate>2010-01-04</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
