Based on the data of A‐share listed enterprise from 2008 to 2020, the paper investigates the impact of the stability of top management team on enterprise innovation from the perspective of chairman's implicit human capital. The results show that a stable top management team can effectively promote enterprise innovation; the chairman's psychological capital plays an inverted U‐shaped regulatory role in the impact of the stability of the top management team on enterprise innovation; the social capital and emotional capital play a positive regulatory role in the impact of the stability of the top management team on enterprise innovation. After further identifying the motivation of enterprise innovation, it is confirmed that the stability of top management team promotes enterprise innovation and the chairman's implicit human capital regulates enterprise substantive innovation. The research of this paper provides new ideas for optimizing the human resource and organizational structure of top management team and improve the efficiency of enterprise innovation.