Views of strategy formulation can be mainly divided into two categories. One is I-O(Industrial Organization), the other one is RBV(Resource Based View)(Hitt, Ireland and Hoskisson, 1999¡G2003¡FSe-Hwa Wu, 2000¡FJoseph Shyu, 2000¡FCher-Min Fong, 2001¡FMing-Jer Tang, 2003).Both of vews have each suitable situation. If strategy is formulated from single view, it will cause defects (Robbins, 2003). Recent years, scholars provide solutions from integration¡Bcontingency and dynamic. However, thesis combines 3 features is still few. This paper attempts to find combined views to suit different situation in a dynamic framework. The research provides a static framework included¡G(1) If the contingency of inside and outside company are stable, companies ought to choose ¡uposition-based view¡v; (2)If the contingency of outside company are not stable but stable contingency of inside company, companies ought to choose ¡uvision-based view¡v; (3)If the contingency of outside company are not stable but stable contingency of inside company, companies ought to choose ¡uenvironment-based view¡v; (4)If the contingency of inside and outside company are both not stable, companies ought to choose ¡uresource-based view¡v; (5)If the contingency of inside and outside company are changing smoothly with controllable situation, companies ought to choose ¡uconstruction-based view¡v. The research provides a dynamic framework. From the long term view, a company needs to adjust itself to match the changing of situation in order to have sustainable competitive advantage.