This study examines whether the legal entity director and corporate governance mechanisms affect tax aggressiveness in Taiwan stock market. The empirical results show that higher legal entity directors could increase tax aggressiveness and the legal entity directors held by government could decrease tax aggressiveness. In addition, when the group enterprise controls by the family member or higher related party transactions, higher legal entity directors could increase tax aggressiveness more significantly. Finally, higher independent director, higher shareholding by directors and supervisors, and lower ratio of directors and supervisors held by manager could lead to decrease tax aggressiveness.