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<?xml version="1.0" encoding="windows-1252"?> |
<ownershipDocument> |
| <schemaVersion> X0305 </schemaVersion> |
| <documentType> 4 </documentType> |
| <periodOfReport> 2012-06-15 </periodOfReport> |
| <issuer> |
| | <issuerCik> 0001144320 </issuerCik> |
| | <issuerName> NEW ENERGY SYSTEMS GROUP </issuerName> |
| | <issuerTradingSymbol> NEWN </issuerTradingSymbol> |
| | </issuer> |
| <reportingOwner> |
| | <reportingOwnerId> |
| | | <rptOwnerCik> 0001489185 </rptOwnerCik> |
| | | <rptOwnerName> Weihe Yu </rptOwnerName> |
| | | </reportingOwnerId> |
| | <reportingOwnerAddress> |
| | | <rptOwnerStreet1> MARKETING OFFICE, 5F 51 BUILDING, NO. 5 </rptOwnerStreet1> |
| | | <rptOwnerStreet2> QIONGYU ROAD, HIGHTECH INDUSTRIAL PARK </rptOwnerStreet2> |
| | | <rptOwnerCity> NANSHAN DISTRICT, SHENZHEN </rptOwnerCity> |
| | | <rptOwnerState> F4 </rptOwnerState> |
| | | <rptOwnerZipCode></rptOwnerZipCode> |
| | | <rptOwnerStateDescription> CHINA </rptOwnerStateDescription> |
| | | </reportingOwnerAddress> |
| | <reportingOwnerRelationship> |
| | | <isDirector> 1 </isDirector> |
| | | <isOfficer> 1 </isOfficer> |
| | | <isTenPercentOwner> 0 </isTenPercentOwner> |
| | | <isOther> 0 </isOther> |
| | | <officerTitle> Chief Executive Officer </officerTitle> |
| | | </reportingOwnerRelationship> |
| | </reportingOwner> |
| <nonDerivativeTable> |
| | <nonDerivativeTransaction> |
| | | <securityTitle> |
| <value> Common Stock, par value $0.0001 </value> |
| </securityTitle> |
| | | <transactionDate> |
| <value> 2012-06-15 </value> |
| </transactionDate> |
| | | <transactionCoding> |
| <transactionFormType> 4 </transactionFormType> |
| <transactionCode> P </transactionCode> |
| <equitySwapInvolved> 0 </equitySwapInvolved> |
| </transactionCoding> |
| | | <transactionAmounts> |
| <transactionShares> |
| <value> 133255 </value> |
| </transactionShares> |
| <transactionPricePerShare> |
| <value> .8804 </value> |
| </transactionPricePerShare> |
| <transactionAcquiredDisposedCode> |
| <value> A </value> |
| </transactionAcquiredDisposedCode> |
| </transactionAmounts> |
| | | <postTransactionAmounts> |
| <sharesOwnedFollowingTransaction> |
| <value> 2008469 </value> |
| <footnoteId id="F1"/> |
| </sharesOwnedFollowingTransaction> |
| </postTransactionAmounts> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| <natureOfOwnership> |
| <value></value> |
| </natureOfOwnership> |
| </ownershipNature> |
| | | </nonDerivativeTransaction> |
| | </nonDerivativeTable> |
| <footnotes> |
| | <footnote id="F1"> Represents 1,078,182 shares held by Gold River Industrial Holding Limited. The Reporting Person holds sole voting and dispositive power over the shares held by Gold River Industrial Holding Limited. </footnote> |
| | </footnotes> |
| <remarks></remarks> |
| <ownerSignature> |
| | <signatureName> /s/ Yu Weihe </signatureName> |
| | <signatureDate> 2012-06-19 </signatureDate> |
| | </ownerSignature> |
| </ownershipDocument> |