Abstract: Riparian buffers are important carriers of river ecosystem. As a key work target and examination indicator, the ecological restoration of riparian buffers was proposed in the 14th Five-Year Plan of Water Ecological Environment Protection in Key Basins. In November 2020, Technical Guidelines for Delineation and Ecological Restoration of Riparian Buffers of Rivers in Zhejiang Province (Trial), the first provincial-level technical document in China, was officially released. The background and significance of the compilation of the technical guideline was interpreted, relevant national and global research status and future development trend were analyzed, and the basic principles, technical routes and main contents of the guideline were interpreted in detail, which could play a positive role in promoting the comprehensive understanding, application and promotion of the guideline.