策略群組研究是策略研究中重要的研究主題，但過去關於策略群組結構演化的研究卻相當少，本研究認為策略群組的演化必須從多層次及多構面的角度理解。策略群組的演化過程可視為是由異化、同化、融合、分殖四種基本階段所組成。本文分析促成這四種階段發生的條件，並發展相關命題。最後，則提出本文在策略群組理論及實證研究上的意涵。

Strategic group is one of the primary research strands in the field of strategic management studies. However, previous studies focusing on evolution of strategic group structures are few. This study adopts a multi-level and multi-dimension approach to investigate the evolution of strategic group structures. The evolutionary process is conceptualized into four stages, namely differentiation, assimilation, fusion, and ramification. This study examines factors triggering the four evolutionary stages, and then raises corresponding propositions. In addition, theoretical and empirical implications for structural evolution of strategic groups are discussed.