Owing to occurring super floodwater in 1998, people more and more came attach importance to protection and reconstruction of eco-environment in upper Yangtserive.Building of Three Gorge project supplies an opportunity for the development of wholly economic exploitation strap.At the same time,it bring seco-environment problem.Human activity impacts on ecoenvironment of Three Gorges reservoir area a reprobed into.With method of system analysis,the eco-environment of reservoir area divides into forest system,water area system and sloping field system.To research their correlation one another,thereby bring forward to measures of sustainable development eco-environmental of reservoir area.