Making use of “pressure-state-response”(PSR)mode，the paper empowered the index system by entropy method and Analytic Hierarchy Process(AHP), and draw up a list of the river basin of 33 key risk enterprises by establishing the river basin water environment risk source fuzzy comprehensive evaluation model by on the basis of in the basin water environment risk source index system and reasonable construction standard.Then,based on the Visual Studio visualization platform and SQL database it developed the key risk source of river basin water environment information management system with asic information,query,tracking and evaluation as a body by combining ArcGIS Engine.The system realized the visualization of data information through programming, and the functions such as query,update and analysis of risk source information.It can provide technical support reference for the source recognition of water pollution accident of the basin through establishing the characteristics database of risk source pollution and source query technical modular.