The invention discloses a water conservancy information automatic statistical system for water diversion, and relates to the technical field of water conservancy information processing. The system comprises a set of application system, two platforms, an entity environment, three supports and two systems, wherein the application system comprises a water level flow monitoring and management system,a water quality monitoring and management system, a water quantity scheduling management system and a comprehensive information service system; the platform comprises a data resource management platform and an application support platform. The physical environment comprises a general dispatching center machine room, a dispatching center hall, a management office, a management office and an in-situstation; the support comprises an automatic control system, a video monitoring system and a comprehensive communication network. By building four application systems, two platforms, one application interaction system, one entity environment, three supports and two systems of automation and communication systems, the information acquisition and supervision requirements of the water diversion project are met, and the project construction, operation and maintenance management level and the emergency disposal and command capacity are improved.