This study investigates whether family-owned businesses appear abnormal returns around succession. I collect 32 family-owned companies that happened succession from 2000 to 2014 in Taiwan. Using the event-study method, we find several factors that significantly affect the performance of the family-owned businesses after succession. First, the more the shares owned by the family in the board, the better the performance. Second, the longer the successors trained in the business, the better the company’s performance is. Third, if there emerges disputes for the successor, which refers to family members’ disagreement for her/him, short-term returns are poor, but long-term performance is fine. The age of successor is irrelevant to the performance.