Taking China's ChiNext listed companies as the research object, the data from 2019 to 2022 was selected to examine the relationship between social responsibility and technological innovation on firm performance, and the changes of this relationship between private and non-private enterprises was explored. The results show that there is a significant positive correlation between corporate social responsibility and corporate performance.There is an obvious positive correlation between technological innovation and firm performance.The higher the level of technological innovation of the enterprise, the stronger the positive correlation level of its social responsibility to the performance level of the enterprise. Compared with non-private enterprises, private enterprises can promote the relationship between the three more. The research conclusions can serve as a reference for the formulation of strategic decision-making for enterprises.