The purpose of this study is to explore the operational performance and strategies of the Credit Department in Taiwan Farmers' Association under the drastic competitive questionnaires and collecting secondary data. We obtained the variables which related managerial strategies. Internal organization, external environment and operational performance. Through factor analysis, cluster analysis, discriminant analysis. And also analyzed the differences of managerial strategies. Organization environment and also analyzed the difference. The analytical results provide the appropriate advises of managerial strategies and related polices. The experimental outcomes of this study have shown some important implications such as (1) the Credit Department in Taiwan Farmers' Association could be divided into four strategic groups: (2) the managerial strategies and operational performance are significantly different among the groups of the Credit department in Taiwan Farmers' Association. (3) the above differences occur along with the differences on the cognizantional environment and the structure of organization. Therefore, based on the research findings, we have following policy suggestions the Credit Department in Taiwan Farmers' Association must adopt fitting operating strategies which includes enlarging the scale of operation. Broadening the scope of coverage, heightening product breadth and idiosyncrasy, energizing the life of organization to cause the organizational normalization attuning. Complication and centralization of the organizaion, precipitating related units by adjusting relevant statute for besetting the Credit Department, increasing business articles and objects, resolving dissidences between policy and related units, and fitting right to meet the duty. Those policy suggestions let the Credit Department conjugate both internal conjugate both internal conditions and external environment, and adopt suitable managerial strategies to promote the operational performance of the Credit Department in Taiwan Farmers' Association.