At present, China is building a social security system covering both urban and rural areas. Among them, universal medical insurance has long been basically realized. By the end of 213, there were 322 million people participating in the basic old-age insurance for urban workers and 498 million people participating in the social old-age insurance for urban and rural residents, and 141 million elderly people participating in the basic old-age insurance for urban and rural residents had received basic pensions. Industrial injury, unemployment and maternity insurance covered 199 million, 164 million and 164 million employees respectively. The level of social security is improving year by year, and the basic pension for enterprise retirees has achieved "ten consecutive adjustments". The balance of income and expenditure of social security funds has been continuously expanded, and its ability to resist risks has been enhanced. By the end of 213, the income, expenditure and accumulated balance of five social security funds reached 3.52 trillion yuan, 2.79 trillion yuan and 4.51 trillion yuan respectively. In addition, the total amount of social security funds in China exceeded 1 trillion yuan. It can be said that China has initially established a social security public service system, and is constantly improving the management service level.