-----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,
 JIpm2oB70f0djG2HcY9U6AwCyL96OqwnRY3/cUifn9zrLnsG1n52jSKeEheYpEzZ
 6+WSf0DNi+RctXUiqkTpIw==

<SEC-DOCUMENT>0001168820-10-000005.txt : 20100219
<SEC-HEADER>0001168820-10-000005.hdr.sgml : 20100219
<ACCEPTANCE-DATETIME>20100219091830
ACCESSION NUMBER:		0001168820-10-000005
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100218
FILED AS OF DATE:		20100219
DATE AS OF CHANGE:		20100219

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BROWN HYATT J
		CENTRAL INDEX KEY:			0001168820

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08841
		FILM NUMBER:		10618159

	MAIL ADDRESS:	
		STREET 1:		213 RIVERSIDE DRIVE
		CITY:			ORMOND BEACH
		STATE:			FL
		ZIP:			32176

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FPL GROUP INC
		CENTRAL INDEX KEY:			0000753308
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				592449419
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		700 UNIVERSE BLVD
		CITY:			JUNO BEACH
		STATE:			FL
		ZIP:			33408
		BUSINESS PHONE:		5616946311

	MAIL ADDRESS:	
		STREET 1:		P O BOX 14000
		CITY:			JUNO BEACH
		STATE:			FL
		ZIP:			33408
</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>2010-02-18</periodOfReport>

    <issuer>
        <issuerCik>0000753308</issuerCik>
        <issuerName>FPL GROUP INC</issuerName>
        <issuerTradingSymbol>FPL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001168820</rptOwnerCik>
            <rptOwnerName>BROWN HYATT J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>220 SOUTH RIDGEWOOD AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DAYTONA BEACH</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32114</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>2010-02-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>45.696</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>59440</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Weighted average purchase price. Reporting person purchased 10,000 shares through a trade order executed by a broker-dealer at prices ranging from $45.67 to $45.70 per share.  The reporting person hereby undertakes to provide full information regarding the number of shares purchased at each separate price upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Alissa E. Ballot (Attorney-in-Fact)</signatureName>
        <signatureDate>2010-02-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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