Social organizations, as a third sector which are making up for government and enterprises are playing an increasingly important role today. Social organizations attract wide attention of researchers. In this paper, the fields of social organizations are analyzed based on the development of Japanese social organizations. Successful experience is summed up from three aspects (government, social organizations, citizens). In the end, four recommendations are put forward: developing organizational autonomy, improving laws and regulations, enhancing the service ability and strengthening public awareness of citizens.