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

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001441693</cik>
        <entityName>MARRONE BIO INNOVATIONS INC</entityName>
        <issuerAddress>
            <street1>2121 SECOND STREET</street1>
            <street2>SUITE B-107</street2>
            <city>DAVIS</city>
            <stateOrCountry>CA</stateOrCountry>
            <zipCode>95618</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>530-750-2800</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <edgarPreviousNameList>
            <previousName>MARRONE ORGANICS INNOVATIONS INC</previousName>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2006</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Pamela</firstName>
                <middleName>G</middleName>
                <lastName>Marrone</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2121 Second Street</street1>
                <street2>Ste B-107</street2>
                <city>Davis</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>95619</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Julie</firstName>
                <middleName>I</middleName>
                <lastName>Morris</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2121 Second Street</street1>
                <street2>Ste B-107</street2>
                <city>Davis</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>95619</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Chris</firstName>
                <lastName>Hildreth</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2121 Second Street</street1>
                <street2>Ste B-107</street2>
                <city>Davis</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>95619</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Keith</firstName>
                <lastName>Pitts</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2121 Second Street</street1>
                <street2>Ste B-107</street2>
                <city>Davis</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>95619</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <lastName>Rominger</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2121 Second Street</street1>
                <street2>Ste B-107</street2>
                <city>Davis</city>
                <stateOrCountry>CO</stateOrCountry>
                <zipCode>95619</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ranjeet</firstName>
                <lastName>Bhatia</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>52 Upper Brook Street</street1>
                <city>London</city>
                <stateOrCountry>X0</stateOrCountry>
                <zipCode>W1K 2BU</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Lawrence</firstName>
                <lastName>Hough</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>252 North Washington Street</street1>
                <city>Falls Church</city>
                <stateOrCountry>VA</stateOrCountry>
                <zipCode>22046</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jim</firstName>
                <lastName>Wissmiller</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2121 Second Street</street1>
                <street2>Ste B-107</street2>
                <city>Davis</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>95618</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Tim</firstName>
                <lastName>Fogarty</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1071 Camelback Street</street1>
                <city>Newport Beach</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>92660</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Sean</firstName>
                <lastName>Schickendanz</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>425 California Street</street1>
                <street2>Suite 2450</street2>
                <city>San Francisco</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94104</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Joe</firstName>
                <lastName>Hudson</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2121 Second Street</street1>
                <street2>Ste B-107</street2>
                <city>Davis</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>95618</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Agriculture</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2010-03-05</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>10000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>16499999</totalOfferingAmount>
            <totalAmountSold>7130446</totalAmountSold>
            <totalRemaining>9369553</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>25</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse>All proceeds will go to working capital.</clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>MARRONE BIO INNOVATIONS INC</issuerName>
                <signatureName>Julie I Morris</signatureName>
                <nameOfSigner>Julie I. Morris</nameOfSigner>
                <signatureTitle>Chief Financial Officer</signatureTitle>
                <signatureDate>2010-03-17</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
