Under the guidance of China's commitment to sustainable and high-quality development,it is of great significance to actively promote enterprises to practice ESG development concepts and green innovation.Based on the panel data of A-share list-ed companies from 2011 to 2022,this paper empirically examines the impact of ESG performance on corporate value and ex-plores the mediating role of green innovation.The results show that the improvement of ESG performance of listed companies has a positive effect on corporate value;Green innovation plays a mediating role in the relationship between ESG performance and corporate value.Further research finds that the impact of ESG performance on enterprise value is heterogeneous in terms of property rights and enterprise size,and the effect of ESG performance on enterprise value is more obvious in state-owned enter-prises and large enterprises.In summary,this paper argues that while implementing the concept of ESG development,enterprises should accelerate the construction of ESG information disclosure system,and also pay attention to the role of green innovation to achieve sustainable development.