Purpose　-　The　purpose　of　this　paper　is　to　contribute　significantly　to　the　empirical　investigations　related　to　the　impact　of　sustainable　supply　chain　management　(SSCM)　practices　on　performance　in　Chinese　firms.　The　paper　also　aims　to　theorize　and　empirically　assess　a　comprehensive　SSCM　practices　and　performance　model.　The　model　incorporates　two　aspects　of　SSCM　practices:　internal　and　external　management,　and　analyses　the　impact　on　corporate　sustainability　performance　from　all　dimensions.　Design/methodology/approach　-　This　paper　develops　a　conceptual　model　to　investigate　the　impact　of　SSCM　practices　on　the　firm　performance.　Based　on　the　data　of　172　Chinese　firms,　this　paper　analyzes　the　impact　of　SSCM　practices　on　firm　economic　performance,　environmental　performance,　and　social　performance　for　each　dimension　by　using　PLS　structural　equation　methods.　Findings　-　The　results　show　that　firm＇s　internal　SSCM　practices　have　a　positive　impact　on　firm＇s　environmental　performance　and　social　performance.　Moreover,　environmental　performance　and　social　performance　are　positively　related　to　economic　performance.　Originality/value　-　A　comprehensive　SSCM　practices　performance　model　is　proposed　and　empirically　assessed　for　Chinese　firms.　The　results　of　this　investigation　support　the　hypotheses　that　SSCM　practices　are　environmentally　and　socially　necessary　and　are　favorable　for　business.　A　series　of　approach　and　implications　of　SSCM　practices　is　recommended.