With the development of economy and society, the surrounding environment of urban pump and sluice is becoming more and more complex. The rationality, advantage and overall coordination of the design scheme are becoming more and more important. Combined with an EPC project of a large urban pump and sluice in Haikou City, BIM Technology is used to model the surrounding environment and pump and sluice engineering. And through the model data, the impact on the surrounding environment and the feasibility of the construction scheme are analyzed to verify the rationality of the design scheme, which provides a reference for the urban pump and sluice projects in other regions.