Taking the provincial sponge city construction pilot work in Wujin of Jiangsu as an example, the new path and new mode of the sponge city construction by the green low-carbon idea to guide the high quality development in the counties are explored. The important features of local urbanization taking counties as the carrier are reflected. The strategy of sponge city pilot construction and the mode of accurate pilot area in Wujin are expounded. The features of the sponge pilot construction systematically and regionally promoted in the typical counties of Wujin are summarized, and five kinds of valuable experience are purified, which can be referenced for the green low-carbon development of the other similar cities.