Low　impact　development　(LID)　technology　has　become　a　crucial　urban　design　tool　in　Europe　and　North　America.　In　China,　although　LID　is　still　a　new　technology　to　them,　the　Chinese　government　is　charmed　by　this　technology,　and　they　have　come　up　with　the　policy　that　builds　sponge　city　through　the　LID　technology.　The　goal　of　＂Sponge　City＂　is　to　achieve　efficient　stormwater　management　and　wastewater　treatments.　This　paper　discusses　this　stormwater　management　and　wastewater　treatments,　as　well　as　their　evaluation,　through　various　case　studies.　Recommendations　will　be　provided　for　the　researchers　and　professionals　based　on　the　discussion　of　these　cases.