Abstract:The water environment is one of important development foundations in a city, and is one of keys to test the level of city management. A good job is done well in the rainwater and sewage mixing reconstruction of community. The pollution should be controlled at its source. The influence of overflow mixed sewage should be decreased on the natural water body. The pollution should be avoided on the surrounding environment. The above can improve the living environment of residents, upgrade the urban image, be beneficial to further enhance the happiness and fulfillment of residents, and promote the urban sustainable development.