Can social security be superimposed and merged?

Social security can be merged, but only medical insurance and endowment insurance can be transferred. According to relevant laws and regulations, medical treatment cannot be enjoyed repeatedly, and the amount of personal account can be transferred for use. If the insured person has the basic old-age insurance relationship or repeatedly pays the basic old-age insurance premium in two or more places, it shall be cleaned up according to the principle of "first transfer and then liquidation".

Legal objectivity:

"Measures for the Administration of Social Insurance Personal Rights and Interests Records" Article 10 When the insured person is employed to handle the transfer of social insurance relationship, the social insurance agency in the newly insured place shall receive and manage the social insurance personal rights and interests records in a timely manner; The social insurance agency of the original insured place shall keep the original records for future reference after transferring the records of individual rights and interests of social insurance.