The relation between perfecting the supervision mechanism of social organizations and developing social organization is inseparably interconnected and mutual promotion. Introducing the mechanism concept, the paper describes that supervision mechanism of social organizations and the relationship between each body. Aim to fully understand regularity cognition about the relationship between the supervision mechanism and development of social organizations. Then, put forward to four measures to perfect the supervision mechanism f social organizations: innovating the management system of social organizations, perfecting law of social organizations, strengthening autonomous construction, and realizing the external supervision overall.