Under　the　dual　pressures　of　climate　change　and　urbanization,　cities　in　China　are　experiencing　increasingly　severe　flooding.　Using　the　Yushan　Lake　area　in　Ma＇anshan　City,　Anhui　Province,　as　a　case　study,　we　employed　the　InfoWorks　Integrated　Catchment　Management　(ICM)　hydraulic　model　to　analyze　the　drainage　and　flood　prevention　system　of　the　region　and　assess　the　current　infrastructure　for　drainage　and　flood　control.　There　are　117　pipelines　with　a　return　period　lower　than　one　year　for　stormwater　and　combined　sewer　systems,　accounting　for　12.3%　of　the　total　number　of　pipelines.　The　number　of　pipelines　meeting　the　one-year　but　not　the　three-year　return　period　standard　is　700,　representing　70.2%.　Only　17.5%　of　the　pipelines　are　capable　of　handling　events　exceeding　the　one-year　standard.　In　simulating　a　24　h,　30-year　return　period　rainfall　event,　the　results　indicate　that　floodwater　accumulation　in　the　study　area　is　predominantly　between　0.15　m　and　0.3　m.　Most　risk　areas　are　classified　as　low　risk,　covering　an　area　of　36.398　hectares,　followed　by　medium　and　high-risk　areas,　which　cover　8.226　hectares　and　3.087　hectares,　respectively.　The　Ma＇anshan　Yushan　Lake　area　has,　overall,　certain　flood　control　capabilities　but　faces　flood　risks　during　storms　with　return　periods　exceeding　three　years.　This　research　offers　valuable　insights　for　improving　urban　flood　management　in　Ma＇anshan　City　through　the　development　of　a　stormwater　management　model　for　the　Yushan　Lake　area.