To　quantify　the　contribution　of　soil　heavy　metal　sources　over　a　large　area,　surface　soil　in　the　middle　and　upper　reaches　of　the　Le＇an　River　in　Jiangxi　Province　was　selected　as　the　research　object.　The　chemical　compositions　of　the　soil　samples　were　analyzed　to　determine　the　local　source　profiles.　The　PMF　(positive　matrix　factorization)　model　was　applied　to　apportion　the　potential　sources　and　their　contribution　of　soil　heavy　metals.　The　results　showed　that　the　average　concentrations　of　As,　Hg,　Cd,　Cr,　Zn,　Cu,　Mn,　Pb　in　the　soil　samples　were　21.400,　0.105,　0.25,　73.5,　88.4,　56.2,　577.0,　49.5　mg/kg　respectively,　ranking　from　1.0　to　1.8　times　of　their　respective　soil　background　values　of　Jiangxi　Province.　The　mean　values　of　As,　Cd,　Cu,　Pb　exceeded　the　grade　one　of　Environmental　Quality　Standard　for　Soils　(GB　15618-1995)　in　China.　The　results　also　show　that　the　soil　heavy　metals　were　mainly　affected　by　lead-zinc　ore　smelting,　gold　ore　smelting,　copper　mining,　and　natural　sources.　Lead-zinc　ore　smelting　activities　affected　the　soil　in　most　areas　on　the　left　side　of　Jishui　River　Basin,　with　the　source　contribution　of　more　than　30%.　While,　gold　ore　smelting　activities　currently　affected　only　the　soil　near　the　mining　area,　with　the　maximum　source　contribution　of　94%.　In　addition,　the　soil　heavy　metals　around　the　Dexing　Copper　Mine　was　affected　by　copper　mining　and　smelting　activities,　which　the　source　contribution　was　between　19%　and　89%.　This　study　indicates　that　constructing　the　local　source　profiles　can　assist　in　the　apportionment　and　verification　of　the　validity　of　PMF　source　profiles.　Combining　PMF　model　and　geostatistical　spatial　analysis　is　an　effective　method　for　obtaining　the　potential　sources　distribution,　and　can　provide　an　effective　support　for　soil　pollution　control　decision-making.　©　2019,　Editorial　Board,　Research　of　Environmental　Sciences.　All　right　reserved.