Abstract: At this present stage, the national economy is developing rapidly, the level of productivity is constantly upgrading, and the pace of urbanization is accelerating, but inevitably, there are many problems in the process of urban construction, such as serious shortage of water resources,rainwater runoff pollution,underground drainage system and unreasonable urban construction planning, so the proposal of sponge city has solved these problems effectively. The core of the sponge city is to save water resources by reducing the demand of water resources in the traditional urbanization process, and improve the whole quality of the existing water resources, balancing the whole city ecological system. Based on this, this paper analyzes and explores the use of sponge city in architectural planning and design in detail.