Abstract:The research taking the promotion of ecological clean small watershed construction in Pudong New Area of Shanghai as an example, based on the basic theory and construction objectives of ecological clean small watershed, this paper puts forward specific construction types and index requirements for the construction of small watershed in Pudong New Area, expounds the construction ways, and puts forward a set of feasible evaluation indexes for the river and lake water environment after construction, It is hoped that it will play a certain promotion and reference significance for the construction of ecologically clean small watersheds in the whole city.