Achieving "peak carbon" by 2030 and "carbon neutrality" by 2060 is China''s solemn commitment to the world and demonstrates China''s spirit of commitment. In the new "double carbon" scenario, traditional performance measures limited to the economic performance of enterprises are insufficient to meet the needs of modern investment, and ESG performance, which integrates environmental, social and management aspects of enterprises, has emerged as a great advantage. The introduction of various green policies has guided companies towards green technology innovation, so what is the impact of green technology innovation on corporate ESG performance? Using a fixed-effects model empirically test the impact of green technology innovation on ESG performance based on the data of A-share listed companies from 2011 to 2020. Result shows that green technology innovation has a positive effect on ESG performance; the effect of practical green technology innovation on ESG is greater than that of inventive green technology innovation; and the most important path to optimize ESG performance is through green technology innovation and then enhancing market competitiveness.