In order to enhance the ability of information processing and to provide a high level application services, this system focus on the solution in lack of water conservancy informationization and the difficulties in information sharing. This system take full advantage of information technology such as MSTP, 3G, 3S and cloud computing to make a concept that the intelligent system of water conservancy based on Internet of Things. This paper provides a holistic solution in order to realize “system intergration, resource sharing”, improve the effectiveness of the management of water projects and speed up the information of water conservancy.