Abstract:“Internet +” has become an important means and an innovative element in the fields of design, production and management. New technologies such as big data, internet of things, cloud computing and artificial intelligence have been gradually applied in the water conservancy industry. Based on the comprehensive perception technology, combining with the engineering practice, this paper introduces diversified information automation, intelligence gathering network such as meteorological information, water (rain) information, safety monitoring, water resources, state of equipment of water conservancy projects, unifies data resources, data mining and integration, builds allround application, achieves water conservancy information data acquisition, processing, application and forms the whole process from acquisition to application, focus on analysis and study of “internet +” technology in large water conservancy hub advanced application technology, and summarizes the application effect of the related technical evaluation, to provide the reference for domestic large water conservancy hub “internet + modern water conservancy” informatization construction.