Which department should I buy social security from?

Legal analysis: Social security is handed over to the administrative department of social insurance stipulated by law, which is generally the human resources and social security bureau at the local level and Ministry of Human Resources and Social Security at the central level. According to the level of the location, you can pay in the corresponding authority. According to the relevant laws and regulations, the administrative department of social insurance in the State Council is responsible for the management of social insurance throughout the country, and other relevant departments in the State Council are responsible for the relevant social insurance work within their respective functions and duties. The administrative department of social insurance of the local people's governments at or above the county level shall be responsible for the management of social insurance within their respective administrative areas.

Legal basis: Article 2 of the Social Insurance Law of People's Republic of China (PRC) The state establishes social insurance systems such as basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance, maternity insurance, etc., to protect citizens' right to get material help from the state and society according to law in case of old age, illness, industrial injury, unemployment and maternity.