The　knowledge　of　PAH　sources　in　soil　plays　an　important　role　in　making　the　decision　of　pollution　emission　restriction,　as　well　as　toxic　information.　The　present　study　developed　a　modified　receptor　model　to　apportion　the　contribution　of　various　sources　to　PAHs　and　associated　toxic.　PMF　model　was　selected　as　the　basic　source　apportionment　model　to　identify　sources　and　apportion　their　contributions.　Toxic　assessment　models,　including　carcinogenicity　assessment　model　and　mutagenicity　assessment　model,　were　then　used　with　PMF　to　obtain　toxic-oriented　source　contribution.　To　attain　this　objective,　16　priority　PAHs　in　the　soil　around　Miyun　Reservoir　were　selected　as　a　case　study.　The　results　showed　that　the　dominant　source　of　soil　PAHs　was　wood/biomass　combustion　(31.02%),　followed　by　vehicular　source　(27.17%),　petroleum　source　(21.27%)　and　coal　combustion　(20.53%).　While　the　highest　contributor　to　carcinogenicity　and　mutagenicity　was　a　vehicular　source,　with　a　proportion　of　36.61%　and　41.46%,　respectively.　This　study　highlights　the　combined　utilization　of　the　source　apportionment　model　and　toxic　assessment　model.　The　approach　was　valuable　for　providing　comprehensive　source-oriented　risk　information,　and　expanding　the　application　of　both　PMF　and　toxic　assessment.