Taiwan manufacturer has the cost advantage of manufacture and is famous in the world. Taiwan Electronic Passive Component(E.P.C.) company has the big pressure from those lower labor and land cost countries such as China because the technical entry barrier of passive component is low. Due to this situation, Taiwan passive component company endeavor to develop high-valued product and keep the strong relation with the customer in order to maintain the long-term profitability. Thus, the low-end and mid-end of passive component is occupied by Taiwan passive component company. Meanwhile, Taiwan Passive component company plan to develop high-end of passive component and to get more profit from these niche product. Taiwan subsidiary of international passive component company has the big competitive pressure on it. If Taiwan subsidiary of international passive component company does not take the appropriate strategy, this niche market will be expected to lose in the near future. Based on industry analysis and supplier analysis of Electronic Passive Component(E.P.C.),and case study from Taiwan subsidiary of international passive company, the thesis explored the success experience of competitive advantage from the case research of mainly utilizing The Five Force Analysis Model, Resource-Based View(R.B.V.), and SWOT Analysis. The suggestion were conclude as followed. 1.To Taiwan E.P.C. industry: To have the strong relation with each Design-Center of Japan, America, and Europe; to get the advantage of key material and manufacture process; to keep improving quality management. 2.To the research firm: To differentiate professional and technical support service; provide just-in-time delivery; to make the low-end product in the lower land and labor cost country.