Abstract:With the development of the Internet of Things, big data, cloud computing, artificial intelligence, 5G and other new-generation information technologies, smart water conservancy has become an important research content and development direction in the field of water conservancy. In order to clarify the main research contents and key scientific issues of smart water conservancy, and further promote the development of smart water conservancy in China, this paper introduces the current research background of smart water conservancy, summarizes the concept, connotation and characteristics of smart water conservancy, proposes the overall hierarchical framework of smart water conservancy, analyzes the functions and supporting technologies of each layer in detail, and summarizes the construction method and experimental process of intelligent system platform related to typical application fields. Based on summary and comb of the existing theory and application system, the main research directions of smart water conservancy in the future are putting forward, including strengthening infrastructure construction, promoting the deep integration of information technology and water conservancy business, building efficient knowledge system, improving system visualization, completing National Water One Map System, strengthening security guarantee, formulating unified standard agreement, solving the challenges caused by different data scales and so on