In recent ten years, due to the offshore migrations of manufacturers, the development of financial institutions focusing on the market of Taiwan has been affected by insufficient market scope and price-cutting competition in the limited market, the interest spread is smaller and the profit is less than before. The study takes the current situation of enterprise financial lending business of banks in Taiwan as the example to discuss how they face the change of circumstance to develop their competitive strategy and to check whether their undertaking business can achieve the mission for enterprises. The research takes Bank C as the case study, to take theory frame analysis of Lin and Pao (2004) to discuss the dominant strategy of enterprise financial lending business of Bank C and how they execute and to further achieve the mission for enterprises .Through checking the various resources and limits of internal and external environment of Bank C, the research thinks if Bank C has well-qualified brand image, uses the strategies of “striving for new client and maintaining the good relationship with old clients”, develops the advantage of “well-qualified enterprise financial team” in the internal environment and controls the advantage of “having wide-range of enterprises clients in the industry environment” and the advantage of “coordination with strategy development” in overall environment to execute “the scale of enterprises financial lending”, they can achieve the mission target of “getting the first place in the market share” ; Thus proposed that Bank C is suitable to execute “ the enlargement of enterprise financial lending scale.