The　geochemistry　research　of　the　super-large　Shuangjianxishan　silver　polymetallic　deposit　is　still　poor　and　this　restricts　our　understanding　of　metallogenic　condition,　source　of　the　ore-forming　material　and　genesis　of　the　deposit.　The　study　carried　out　detailed　analysis　of　the　trace　and　rare　earth　elements　for　sphalerite,　pyrite,　galena,　and　arsenopyrite　from　the　disseminated　sulfide　ore,　vein　sulfide　ore,　and　massive　sulfide　ore.　The　results　show　that　the　metallogenic　fluid　is　characteristic　of　Cl-rich　hydrothermal　fluid　with　temperature　and　fO2　gradually　decreasing　from　early　to　late　ore-forming　stages.　By　comparing　the　LREE/HREE,　δCe　and　δEu　characteristics　of　sulfide　and　magmatic　rocks　exposed　(dikes)　in　the　mining　area,　and　the　difference　of　As,　Sn,　and　Sb　in　the　different　orebodies,　this　study　suggests　that　the　ore-forming　materials　are　multiple　sources　or　the　superposition　of　multistage　mineralization.The　enrichment　of　mantle　derived　elements,　such　as　Cu,　Co　and　Cr,　suggests　that　the　mantle　derived　material　should　not　be　excluded　during　the　mineralization.　Comparison　study　with　magmatic　hydrothermal　type,　SEDEX　type,　MVT　type,　and　stratabound　magmatic　hydrothermal　superimposed　type,　the　Mn　Cd,　Sn,　Ga,　Tl　content,　Cd/Mn,　Zn/Cd　ratio　and　REE　of　the　sphalerite　from　the　Shuangjianzishan　deposit　shows　that　the　deposit　is　characteristic　of　trace　and　rare　earth　elements　of　magmatic　hydrothermal　fluid　and　can　be　classified　into　the　magmatic　hydrothermal　type.　©　2018,　Science　Press.　All　right　reserved.