Abstract: The restoration of contaminated soil assisted the site excavation is netded by a chernieou contaminated site in a planned development area in shanghai.According to the spatial distribution characteristics of pollution sites,the surrounding environment and the volatility of pollutants,Through the rational selection of foundation pit protection scheme,excavation design of the area is divided into different working conditions,the excavation made is designed of closed greenhouse grading excavation,and the partial use of gravity type cement soil retaining wall combined steel sheet pile and other composite enclosing plan.The remediations of contaminated sites have been quick,efficient,cheap,safe and satisfies environmental protection requirements.It has accumulated rich experience for similar projects.