This study provides the first empirical evidence on the relationship between the chairman of the board of directors (COB) and corporate financial performance. Using a sample of Chinese A listed firms between 2008-2017, we find reliable evidence that the COB turnover improves corporate financial performance. Moreover, the existence of a majority shareholder (Majority) positively influences corporate financial performance, while firm nature (private majority shareholder or public majority shareholder)(Private) may not.