Combined with statistical analysis and field investigation, the geographical location and natural resources are analyzed, and the level of water-saving society in Tongzhou District of Beijing, China is evaluated by processing the water data in agriculture, industry, living and ecological environment and the whole society. It is found that the level of water-saving society in Tongzhou District is low, and it has some difference from the position of sub-center of Beijing. the expected. Analysis of the field investigation shows that the existing problems in the system construction, work mechanism, statistics and law enforcement inspection have effects on the water-saving efforts and work effectiveness. Therefore, in order to provide necessary technical supports for the construction of water-saving society in Tongzhou District and the transform from agriculture suburban district to modern city sub-center, some countermeasures and suggestions are put forward, such as implementation of territorial responsibility, improvement of statistical assessment and promotion of grid-based law enforcement system.