With the rise of feminism, the number of working women has increased significantly. Relatively, the proportion of women who act as supervisors has been increasing continuously and obviously. In many well-known international enterprises, many high-ranking female leaders have emerged, displaying their unique characteristics of management and leadership, leading companies to increasingly thriving. The study mainly explored the leadership styles of female leaders and gender role related matters. The study objects were high-ranking female leaders. By the means of field interview, female leaders in various industries were interviewed. The data collected and contents of interviews were cross compared with the self-assessment of the interviewees. This study explored through three aspects as below: 1. Leadership styles of female leaders 2. Impact of gender role 3. The gender role impact of female leaders on the leadership style Based on the individual leadership characteristics and gender identity, main leadership styles and commonality were summarized. Critical successful factors were explored through the characteristics, style and experience of successful female leaders. This study adopted the methods of qualitative research, case study and semi-structured intensive interview. The findings of this study are listed as below: 1. The leadership style of high-ranking female leaders: Democratic leadership is the main style, supplemented by autocratic leadership to guide the subordinates to negotiate, reach a consensus and achieve goals. 2. Work-centered leadership style: Most female leaders adopt work-centered style which can easily achieve the goal of work. 3. Mainstream of transformational leadership: The study found out that all female leaders adopted transformational leadership uniformly. The main reason is that it is more suitable for working environment and it is effective in developing team consensus. 4. Glass ceiling effect: Owing to the change of gender stereotype, professional capabilities and work performances were the main basis for promotion. Gender isn¡¦t the main factor to be considered any longer.