The　frequent　urbanization　and　extreme　rainfall　events　have　posed　the　threat　to　the　urban　environment.　The　implementation　of　low　impact　development　(LID)　practices　with　great　potential　for　control　urban　flood　and　overflow　pollution　is　not　comprehensively　understood　yet　due　to　the　influence　of　complex　factors　(i.e.,　hydrological　pattern,　installation　location,　and　vertical　parameter　setting).　In　this　study,　the　hydraulic　and　water　quality　model　were　used　to　analyze　the　hydrological　and　pollution　reduction　of　outfall　and　storage　under　different　hydrological　patterns,　vertical　parameter　setting,　and　green　infrastructure　installation　locations,　which　can　determine　the　best　implementation　of　the　scheme　for　overflow　pollution　control.　The　results　showed　that　nine　parameters　of　the　vertical　layer　regarding　the　four　parameters　impacted　the　peak　value　and　load　of　suspended　solids　(SS).　The　combination　scheme　of　the　LID　practices　was　further　proposed　based　on　the　selection　and　analysis　of　the　single　LID　practice.　Besides,　considering　the　installation　location,　the　downstream　installed　location　was　a　better　choice.　The　horizontal　connection　of　overflow　runoff　and　pollution　could　be　reduced　by　up　to　9.75%　and　36.46%,　respectively.　In　addition,　the　horizontal　connection　can　effectively　reduce　the　peak　value　of　inflow　and　pollutants　at　the　time　of　assessing　storage　tank　impact,　which　reach　the　maximum　of　14.08%　and　29.25%,　respectively.　The　pollutants　distribution　became　uniform　and　showed　better　resilience　against　rainfall　intensity,　which　is　beneficial　to　the　management　of　stormwater.　Our　findings　can　provide　guidance　for　Sponge　City　construction　and　effectively　alleviate　the　combined　sewer　overflow.　(c)　2021　Published　by　Elsevier　B.V.