Can social security be paid separately?

You can't. Social security management stipulates that a person can only handle one social security account. You can't sign a labor contract with the new company without going through the resignation formalities with the original company. If the new company doesn't understand the situation and signs it with you, it can't go to the local labor and social security bureau for filing. Social Insurance Law Article 2 The state establishes social insurance systems such as basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance and maternity insurance, so as to guarantee citizens' right to receive material assistance from the state and society in accordance with the law in case of old age, illness, industrial injury, unemployment and maternity.

Legal objectivity:

People's Republic of China (PRC) Social Insurance Law Article 2 The state establishes social insurance systems such as basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance and maternity insurance to protect citizens' right to get material help from the state and society in the event of old age, illness, industrial injury, unemployment and maternity. Article 23 of the Social Insurance Law of People's Republic of China (PRC), employees shall participate in the basic medical insurance for employees, and the employer and employees shall jointly pay the basic medical insurance premium according to the provisions of the state. Individual industrial and commercial households without employees, part-time employees who have not participated in the basic medical insurance for employees and other flexible employees can participate in the basic medical insurance for employees, and individuals pay the basic medical insurance premium in accordance with state regulations.