This paper puts forward the system of "river chief mechanism" for river and lake management based on Android system, in order to solve a series of problems which consists of low level redundant construction, scattered information resources , low efficiency, lack of integration of information resources and collaboration, and weak security system. This system truly realizes water resources informationization, through the advanced technology of mobile Internet, with Gson parsing technology, data cache technology and Socket communication technology, and it also realizes the function of leader responsible system for river management in the mobile application, besides, it is easy to work and has a certain practical value.