It takes the data of Chinese manufacturing listed companies from 2006 to 2017 as the research sample, and takes the degree of power concentration of CEO as the moderator to explore the relationship between CEO tenure and independent innovation capability in China. The results show that: (1)In the long run, the longer the CEO tenure, the more beneficial to the improvement of independent innovation capability, (2) the higher the power concentration of CEO, the more beneficial to the improvement of independent innovation capability; (3) CEO power concentration and CEO tenure have "accompanying effect", which can expand the positive effect of CEO tenure on the independent innovation capability, which is called “employers do not suspect, the suspect not”;(4)At present, state-owned manufacturing enterprises should pay more attention to the positive role of CEO tenure on independent innovation capability, and the CEO tenure of state-owned enterprises should be considered to increase, while private manufacturing enterprises should pay attention to the concentration of CEO power in corporate governance structure. The conclusions are robust.