This study primarily explores how the company managers apply the strategic management to strengthen its resources and capabilities, and increase company’s distinctive competencies. These distinctive competencies lead to achieving excellent efficiency, quality, innovation and customer responsiveness which can build up the company’s competitive advantage. The methodology of case study on strategic management is adopted and the researched case is YiFeng Electric Industrial Co., Ltd. Through the case study analysis, this study finds: The managers use the strategic planning process then take suitable effective strategies, can reach high corporate performance and own competitive advantage. The results of this study may provide some strategic management suggestions for the companies to reach excellent performance and enhance competitive advantage.