Based on managerial power theory, feminist care ethics theory and critical mass theory, the paper explores how CEO duality changes the relationship between female directors and managerial perks. This paper uses SPSS and STATA statistical software to conduct an empirical study using a data sample of 4126 listed AI (artificial intelligence) companies in Shanghai and Shenzhen from 2011 to 2020. The results reveal that female directors can significantly promote managerial perks in the case of CEO duality and achieve effective correction of managerial perks when the CEO does not also serve as chairman. CEO duality is a key boundary condition for female directors to effectively monitor managerial perks. The study explores whether female directors can be effective in curbing managerial perks, given that the role played by female directors is related to environmental conditions. We expect that CEO duality, a key situational variable representing the level of CEO power, could significantly change female directors' attitudes toward management perks.