The main body of social security is

Legal analysis: the subject of social security is also called the subject of social security legal relationship. The content and object of the legal relationship with social security constitute the three elements of the legal relationship of social security: the subject refers to the parties to the social security law, that is, the participants who enjoy social security rights and assume social security obligations according to law in social security activities. In China, the legal subjects of social security mainly include citizens, enterprises and institutions and the state (through social security functional institutions).

Legal basis: Article 7 1 of the Social Insurance Law of People's Republic of China (PRC) stipulates that the state establishes a national social security fund, which is composed of funds allocated by the central government and raised by other means approved by the State Council, to supplement and regulate social security expenditure. The national social security fund is managed and operated by the national social security fund management and operation organization, and the value is maintained and increased on the premise of ensuring safety.