The purpose of this study is to examine the relationship between R&D commitment and Taiwanese family firm performance considering the moderation of outside directors as well as the deviation between ownership and control. We identified 250 Taiwanese listed electronic firms during 2003-2007 as research targets. The results showed that family firms' R&D commitment is positively related to firm performance. The ratio of outside directors and the deviation between ownership and control positively and negatively moderate the relationship between family firms' R&D commitment and firm performance respectively. In addition, the deviation between ownership and control reduces the positive contribution of outside directors.