The balance of social security accounts transferred from different places to Xiamen will be merged.

First of all, you can only choose one of them to continue to participate in the insurance, and the other account will be invalid. If you want to transfer social security in different places back to the local area, you can apply to the social security department yourself. Social security will not take the initiative to handle the transfer procedures for you.

Social security in different places cannot be merged automatically, because social security cards are not connected to the whole country and cannot be used and merged in two places.