Analyzing Financial Performance Estimating Model Based on Scale Cooperative require analysis relating to the survival of the cooperative. This study sampled 79 cooperatives Swamitra micro business BUKOPIN bank unit by observing the data for each variable related to capital structure, credit risk, social performance, financial performance and sustainability of cooperatives, during the period of 72 months in West Java Province. Research studies have shown that the assessment of financial performance and social performance is an approach that assesses the importance of sustainability, financial aspects and social aspects in an organization, it is mainly related to the perception of the capital structure, credit risk, social performance, and economies of scale in delivering small loans will very influential terhdadap sustainability of the organization. Cooperative will attract the attention of business people and financiers because it shows that the long-term sustainability will be very potential to be developed. Scale cooperative effort will greatly affect the financial performance and sustainability of cooperatives.