Sponge city is a new generation of urban stormwater management concept. It refers to the city's good "resilience" in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called "water Resilient Cities”. The internationally accepted term is “Low Impact Development Stormwater System Construction”. When it rains, it absorbs, stores, seeps, and purifies water, and "releases" the stored water for use when needed. Nanjing Jiuherun has been continuously developing permeable pavements for many years and has invested in projects. Currently, it has built multiple permeable concrete pavements in major provinces and cities and achieved good results. With unique technology, mature patents and qualified products.