Abstract:In order to effectively promote the informatization level of hydrological business, use the advanced informatization concepts and technologies, guide the hydrological industry to comprehensively promote the informatization construction and improve the efficiency of hydrology informatization, based on the current situation of hydrologic service informatization development, this paper deeply combs the construction needs of hydrologic service informatization, focuses on future information technology development trends, introduces new technologies and concepts such as big data, support platform and cloud computing, and discusses the basic principles, construction ideas and overall framework of hydrological informatization development. Results show that hydrological informatization should adhere to principles such as business-core, advanced technology and concept, and step-by-step implementation of the overall plan. Based on hydrological intelligent perception network, the overall framework of intelligent hydrological business information system is built from four aspects: information aggregation, data management, professional application and focused service, relying on regional water information resources and cloud platform support system, and focusing on hydrological data management and business application.