The implementation of social responsibility has become an indispensable part of the long-term operation of the banking industry. Based on the panel data of 39 A-share listed commercial banks in Shanghai and Shenzhen from 2010 to 2021,it is found that the fulfillment of social responsibility by commercial banks has improved the asset quality of banks, furthermore, it has a positive effect on bank financial performance. In addition, the impact has obvious heterogeneity of operating scope. The implementation of social responsibility by national commercial banks can significantly improve the financial performance of banks, but the impact on the financial performance of local commercial banks is not significant.