商業生態系統在全球併購趨勢下，呈現快速大幅成長並促成產業更有效率的重整。全球併購案於近年展現成長趨勢，併購案件之數量呈現大幅成長。深入分析「商業生態系統」與併購整合，對企業經營及產業升級有具體貢獻。國際企業積極採用併購整合為成長策略，並以商業生態系統整合為主要戰略；這些專注於與本身產業相關度高的主併公司，在併購過程中獲得較高整合綜效及經營績效。本研究採用併購對企業「商業生態系統」之貢獻及併購整合績效，結合學術理論及管理實務進行深入分析。從商業模式到價值網絡分析商業生態系統，本研究主併公司屬於德國西門子集團之「製程自動化事業單位」，快速併購4家於獲利能力、研發能力、經濟規模及商品組合等，大多優於主併公司既有之產業競爭優勢。並漸成為全球「製程自動化」產業之領導者。本文以詮釋型個案研究法說明，研究成果可提供併購後整合相關理論及管理實務決策之建議。

Under the global Mergers and acquisitions (M&A) trend, the business ecosystem has shown rapid growth and efficiently promoted the reorganization of the industry. Global M&A has grown in recent years, and the number of M&A cases has significantly increased. International companies actively adopt M&A as a growth strategy and take the integration of business ecosystems as the primary tactic. Those companies that focus on similar industries have obtained higher integration synergies and operating performance during the M&A process. This study adopts the contribution of M&A to the business ecosystem and the integration synergies of a company. It conducts in-depth analysis from the perspective of academic theory and management practice. From the study of the business model to value networks of the commercial ecosystem, the acquiring company, Process Automation Business Unit of Siemens AG, has acquired four companies in a short period, regardless of the advantages of profitability, R&D capabilities, economic scale, and commodity portfolio are better than it and became the leader of the process automation industry. This paper applies the case study research method, and the results can provide suggestions for the theory of post- M&A integration decision-making in management practice.