Abstract: The greening of the global surface is crucial to mitigating regional warming,promoting ecological balance and sustainable development,and China has made a significant contribution to this in the past three decades and has effectively alleviated the problem of land degradation by rapidly increasing vegetation coverage.Environmental problems such as degradation,water scarcity and air pollution.Previous studies have shown that vegetation has a positive effect on mitigating water and soil erosion,but there is still a lack of quantitative description of runoff erosion and sediment transport under land-scale,long-term and high-resolution vegetation evolution in China.In response to this,this article uses the RUSLE model and multi-source satellite remote sensing data to analyze the spatiotemporal changes in China’s vegetation mitigation of soil erosion from 1990 to 2020,and its correlation mechanism with multiple driving factors.The results show that:①The proportion of regional vegetation in China that has significantly increased the amount of water and soil erosion (VAE) has increased by 2.71%,mainly concentrated near the Hu Huanyong Line;②The efficiency of vegetation in mitigating water and soil erosion has increased significantly,especially forests,accounting for about is 76.50%.The research conclusions are of great significance to soil erosion prevention and control,soil ecological improvement,vegetation dynamic planning and regional sustainable development.