-----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,
 NlJowiv2jfh+FyHCWZGrDsudXbBCj8/2UVohGzTKhp+dbJesV7lChrYt3h6NQGU1
 ZNSAnFZ1/bquiqsXBMyCxg==

<SEC-DOCUMENT>0001198141-08-000006.txt : 20081222
<SEC-HEADER>0001198141-08-000006.hdr.sgml : 20081222
<ACCEPTANCE-DATETIME>20081222114851
ACCESSION NUMBER:		0001198141-08-000006
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20081218
FILED AS OF DATE:		20081222
DATE AS OF CHANGE:		20081222

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MAYRHUBER WOLFGANG
		CENTRAL INDEX KEY:			0001198141

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04604
		FILM NUMBER:		081263002

	BUSINESS ADDRESS:	
		STREET 1:		3000 TAFT STREET
		STREET 2:		EXECUTIVE OFFICES
		CITY:			HOLLYWOOD
		STATE:			FL
		ZIP:			33021

	MAIL ADDRESS:	
		STREET 1:		C/O HEICO
		STREET 2:		3000 TAFT STREET
		CITY:			HOLLYWOOD
		STATE:			FL
		ZIP:			33021

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HEICO CORP
		CENTRAL INDEX KEY:			0000046619
		STANDARD INDUSTRIAL CLASSIFICATION:	AIRCRAFT ENGINES & ENGINE PARTS [3724]
		IRS NUMBER:				650341002
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1217

	BUSINESS ADDRESS:	
		STREET 1:		3000 TAFT ST
		CITY:			HOLLYWOOD
		STATE:			FL
		ZIP:			33021
		BUSINESS PHONE:		954-987-4000

	MAIL ADDRESS:	
		STREET 1:		3000 TAFT STREET
		CITY:			HOLLYWOOD
		STATE:			FL
		ZIP:			33021

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HEINICKE INSTRUMENTS CO
		DATE OF NAME CHANGE:	19860417
</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>2008-12-18</periodOfReport>

    <issuer>
        <issuerCik>0000046619</issuerCik>
        <issuerName>HEICO CORP</issuerName>
        <issuerTradingSymbol>HEI, HEI.A</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001198141</rptOwnerCik>
            <rptOwnerName>MAYRHUBER WOLFGANG</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>VORSITZENDER DES VORSTAND S</rptOwnerStreet1>
            <rptOwnerStreet2>DEUTSCHE LUFTHANSA AVIATION CENTER</rptOwnerStreet2>
            <rptOwnerCity>AIRPORTRING , 60546 FRANKFURT</rptOwnerCity>
            <rptOwnerState>2M</rptOwnerState>
            <rptOwnerZipCode>60546</rptOwnerZipCode>
            <rptOwnerStateDescription>GERMANY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1313</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-12-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26.05</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6713</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Wolfgang Mayrhuber</signatureName>
        <signatureDate>2008-12-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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