當身處一個競爭激烈的行業，企業想要保持發展，就必須與時俱進，積極創新。但企業應該從哪裡找到創新的機會？除了技術和產品之創新，越來越多企業開始關注商業模式的創新。過去，對商業模式創新的討論大部分集中在企業的內部系統活動改造，或是期待從開放創新中尋找機會。本研究嘗試把商業模式理解為一種敵我對應關係，從主流企業與後進者的攻防戰中理解創新的調適過程。通過分析「非主流」的後進者如何回應主流設計，並由主流企業之迷思理解後進者如何找出商業模式創新的可能。本研究發現，商業模式創新的本質是動態的，而其過程是調適的。後進者可以由主流企業建構商業模式之迷思中，找到自身商業模式創新的諸多樣貌與調適的巧思。 / In an industry that faces intensified competitions, firms need innovate constantly and timely so as to maintain steady growth. But where could firms identify opportunities for innovation? In addition to the innovation of technologies and products, more and more firms pay attention to business model innovation. Previously, our understanding of business model innovation is limited to firms’ business activity systems, or to seek opportunities from open innovation. This thesis attempts to consider the business model as a kind of responsive process between rivals; and to analyze the adaptation of business model within the defensive process between the mainstream firms and the second mover. By analyzing how the non-mainstream player may respond to the evolving dominant design, it is posisble to recognize the myths of the development of mainstream business models. This research suggests that business model innovations are dynamic in their nature and adaptive in their developmental process. The second mover could identify various patterns of new business models and conceive creative adaptation from the mainstream firms’ myths in building their own business models.