The aim of this study is to determine the impact of empowering leadership by supervisors on the psychological empowerment of employees in a survey of employees working in Taiwanese companies. Based on the results of the literature survey, it was hypothesized that the impact of empowering leadership by supervisors on employees' psychological empowerment would vary depending on the level of proactivity of the employees. To test the hypothesis, the authors conducted a hierarchical multiple regression analysis using questionnaire survey data from 221 employees working in Taiwanese companies. The results showed that the effect of empowering leadership depends on the degree of proactivity of the employees, and that it is more effective for employees with low proactivity than for employees with high.