Abstract:Sponge city is a new concept of urban construction in China, mainly solving the problem of "quality" and "quantity" of urban runoff and rainwater. Wuhu City, as the second batch of nationwide demonstration cities for promoting the construction of sponge cities in a systematic and comprehensive manner, is required to implement the concept of sponge city in urban construction projects. Taking three different types of urban roads in Wuhu City as the research object, according to the construction conditions of sponge city, from two aspects of controlling rainwater runoff pollution and runoff volume, and through the road cross section slope optimization, the technical optimization measures for infiltration, detention storage and purifying rainwater of environmentally friendly rainwater inlets, permeable paving, cover plate drainage ditches, ecological tree ponds (strips) and bioretention facility are proposed to achieve goals of the annual runoff pollution control rate and the annual runoff volume control rate of roads, and can effectively reduce the rainwater runoff pollution and alleviate the urban drainage pressure, which can provide reference and inspiration for the construction of sponge city for the relevant urban roads.