-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Ix7NtUnPxrVvBb+Q6bULrjE2V7S58UVFCPa3fAS8mc6Wcw9198qOGYYyPfM3YHkC
 s/5jpVUWL0boHLEOCNammg==

<SEC-DOCUMENT>0001019687-10-003339.txt : 20100913
<SEC-HEADER>0001019687-10-003339.hdr.sgml : 20100913
<ACCEPTANCE-DATETIME>20100913162856
ACCESSION NUMBER:		0001019687-10-003339
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100909
FILED AS OF DATE:		20100913
DATE AS OF CHANGE:		20100913

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Layne Larry D
		CENTRAL INDEX KEY:			0001422122

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21467
		FILM NUMBER:		101069420

	MAIL ADDRESS:	
		STREET 1:		C/O PACIFIC ETHANOL, INC.
		STREET 2:		400 CAPITOL MALL, #2060
		CITY:			SACRAMENTO
		STATE:			CA
		ZIP:			95814

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Pacific Ethanol, Inc.
		CENTRAL INDEX KEY:			0000778164
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		IRS NUMBER:				412170618
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		400 CAPITOL MALL, SUITE 2060
		CITY:			SACRAMENTO
		STATE:			CA
		ZIP:			95814
		BUSINESS PHONE:		916-403-2123

	MAIL ADDRESS:	
		STREET 1:		400 CAPITOL MALL, SUITE 2060
		CITY:			SACRAMENTO
		STATE:			CA
		ZIP:			95814

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ACCESSITY CORP
		DATE OF NAME CHANGE:	20030627

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DRIVERSSHIELD COM CORP
		DATE OF NAME CHANGE:	20001115

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIRST PRIORITY GROUP INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-09-09</periodOfReport>

    <issuer>
        <issuerCik>0000778164</issuerCik>
        <issuerName>Pacific Ethanol, Inc.</issuerName>
        <issuerTradingSymbol>PEIX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001422122</rptOwnerCik>
            <rptOwnerName>Layne Larry D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>400 CAPITOL MALL, SUITE 2060</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SACRAMENTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95814</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-09-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>30000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>.7102</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>34600</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Larry D. Layne</signatureName>
        <signatureDate>2010-09-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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