Abstract:As a frontier topic in the field of innovation, corporate social innovation mainly focuses on theoretical research, case study, etc. At present, there are few empirical studies, and its influence mechanism on corporate value has not been fully analyzed. This paper conducts theoretical research and empirical test on the relationship between corporate social innovation, knowledge output and corporate value, taking A-share listed companies as samples. The results show that corporate social innovation can promote knowledge output and enhance corporate economic value, and knowledge output plays a partial intermediary role in the relationship between corporate social innovation and corporate economic value, while corporate social innovation has no significant positive impact on corporate social value. The research conclusion provides new management enlightenment for the corporate social innovation practice of domestic enterprises.