Abstract: The restoration of ecological buffers of lakes and reservoirs is an effective measure to enhance the carrying capacity of water environment and to realize the increment of ecological expansion, which is of great significance to restore the water ecosystem and realize the harmony between human and water. It was clearly proposed to carry out the protection and ecological restoration of river and lake buffers in Action Plan for Prevention and Treatment of Water Pollution, and the ecological restoration of ecological buffers was also clearly listed as one of examination indexes in the Technical Outline of the 14th Five-Year Plan for Water Ecological Environment Protection in Key Basins. Zhejiang Province took the lead in compiling Technical Guidelines for Delineation and Ecological Restoration of Ecological Buffers of Lakes and Reservoirs in Zhejiang Province (Trial)in China. Based on the analysis of the impact of the characteristics and functions of lakes and reservoirs, the types of lakeside land uses, and the intensity of pollution sources on the buffer space needed to achieve the goal of lake protection, the methods for delineating the scope of ecological buffers of lakes and reservoirs, the width delineation by classification, and the ecological technology model of classified restoration were put forward in the guidelines, and the applicable restoration technologies of ecological buffers of lakes and reservoirs were recommended, which could provide support for guiding and standardizing the ecological restoration of different types of lake and reservoir buffers in Zhejiang Province.