Abstract: Erhai Lake, as the seventh largest freshwater lake in China, bears the significant responsibility of ensuring drinking water safety, and its status cannot be ignored. The Luoshijiang estuary wetland is located at the mouth of the Luoshijiang in the Erhai Lake, serving as the last line of defense to reduce agricultural non-point source pollutants brought by the Luoshijiang and protect the water quality of the Erhai Lake. However, in recent years, the degradation problem of the wetlands at the mouth of the Luoshijiang has become increasingly serious, manifested as local water system obstruction, plant residue decomposition leading to water pollution, and poor heterogeneity of bird habitats. To address these issues, this study adopts a strategy primarily based on natural restoration and supplemented by artificial restoration. Through measures such as implementing water system dredging projects, plant removal optimization projects, degraded wetland restoration projects, and increasing bird habitat heterogeneity projects, the aim is to enhance the overall biodiversity of wetlands, significantly improve the quality of water ecological environment, and achieve harmonious coexistence between humans and nature.