Using multiple regression analysis to investigate 2011~2015 annual data of listed companies in Taiwan, this research focuses on the impact of overlapping independent directors on corporate performance. In 2015, more than half of the independent directors of Taiwan listed companies had overlapped, with the cement industry having the most and the construction industry having the least overlapping independent directors. The results indicate that overlapping independent directors, the proportion of independent directors, the proportion of managers' shareholding, the shareholding ratio of the board of directors, the shareholding ratio of the majority shareholder, the shareholding ratio of the board of directors, the size of the board of directors as well as the number of shareholders are positively associated with firm performance.