With the five special economic zones entering in the new norm and the promotion of comprehensively deepening the reform，the new contradictions and new problems faced in the social security development of special economic zones are increasing obvious.The report sorts the basic situations of the social security development of Shenzhen，Zhuhai，Xiamen，Shantou and Hainan special economic zones from the aspects of social security，social assistance and social welfare，and summarizes the achievements of the social security development of the 5 special economic zones.Meanwhile，the report analyzes the actual dilemma faced in the social security development of the 5 special economic zones by combining with the social and economic development backgrounds，and makes suggestions on promoting the social security development of the 5 special economic zones from the aspects of social security system，social security fund，social security policy and laws and construction of social security information platform，so as to provide policy references for the reform and improvement of social security systems of China's special economic zones.