Abstract:  Based on the analysis of the restoration technologies of river and lake buffer zones and aquatic vegetation at home and abroad, a technical evaluation index system is constructed from 1four dimensions: technological readiness, economy, pollution reduction and carbon emission reduction, and ecological environment. The Entropy Weight TOPSIS method is applied to evaluate 62 technologies that have been applied in projects. As a result, 9 green and low-carbon technologies for river buffer zone restoration, 9 green and low-carbon technologies for lake buffer zone restoration, 6 green and low-carbon technologies for wetland ecological restoration, and 8 green and low-carbon technologies for aquatic vegetation restoration are screened out. Moreover, radar charts are used to analyze the advantages and disadvantages of these green and low-carbon technologies, and the analysis results can provide guidance for the further optimization and practical application of these technologies.