Aims to improve urban stormwater management and promote sustainable urban development. However, at present, sponge city construction is still in its exploratory stage. It is still not clear which models are capable of simulating the six key processes (i.e., “retention,” “infiltration,” “storage,” “purification,” “discharge,” and “utilization”) of sponge city practices. Its various benefits (e.g., social, economic and environmental benefits) have not yet been systematically investigated in the context of the sponge city. there are 4 overlap ones) and investigated their application. InRain Construction use over flooded urban and rural water laying on the surface of different locations connected recharge shaft and excess water over the surface is being filtered and retained BOX type Honey comb structure this is 100% effective solution thereby saving funds in construction of excess sewage line and over pumps by local bodies. We are progressive on such as the development of a stormwater database and the incorporation of long-term climate change impacts into the model.