In recent years, the traditional extensive urban development and construction has led to the destruction of rivers, lakes, green spaces and other ecological environments to varying degrees, and the hardened area of the ground has increased greatly, destroying the original natural ecological and hydrological characteristics of the city. After urban development and construction, rainwater that could have infiltrated into the ground in a large amount will form runoff in a short time, and it will be quickly discharged through "gray" facilities such as canals and pumping stations, which often causes the drainage system to be overwhelmed and waterlogged, and a large amount of rainwater cannot be infiltrated and utilized. In cities where the ecological environment has been destroyed, there have been a series of problems, such as waterlogging when it rains, deterioration of water ecology, shortage of water resources, pollution of water environment, lack of water security and so on.
Therefore, urban construction must change the development concept and mode, and build and develop on the basis of ecological protection. Building a sponge city is an important way to solve this series of problems. Sponge city takes ecological civilization as the guiding ideology, which is helpful to do a good job in the rational layout of the city, improve infrastructure and environment, and coordinate the relationship between society, economy, environment and development. It is of great theoretical and practical significance to explore the establishment of urban development and construction in line with China's national conditions, which not only reflects the harmonious integration of urban society, economy and nature, but also meets the current urban requirements in China.