: Optimization the Role of Women in Improving Welfare Cooperative Members. Related many Women's Cooperative in East Java, especially Sumenep, Women's Cooperative in 2011 Potre Koneng members reach 1,158 people. Women's Cooperative existence is not optimal because it does not include all residents in the District City Sumenep women, there is no regeneration of the chairman of the cooperative and the store only to members. The purpose of writing is decrypt and analyze the impact of the optimization efforts and the role of Women's Cooperative Potre Koneng. This research uses descriptive qualitative research method using a model of interactive data analysis Spradley. Role in the optimization of the Women's Cooperative Potre Koneng existing efforts through capacity development (capacity building) include human resource development, organizational strengthening, institutional reform, participation of members and business diversification. Optimization the impact of the role that the number and activity of members, business development, of net income (SHU) and the surrounding environment. In this case, it still remains on the development of members through training/case study and the business environment as well as to shop in addition to members of the public.