Can the social security card in my hometown and the social security card in other places be merged?

The social security card of my hometown can only be used at the place where I deposit it, but generally cannot be used elsewhere. If you are employed in other places, you can go through the formalities of social insurance transfer and then use it in other places. The administrative department of social insurance and the administrative department of health shall establish a settlement system for medical expenses in different places to facilitate the insured to enjoy the basic medical insurance benefits.

Legal objectivity:

"People's Republic of China (PRC) Social Insurance Law" Article 29 The part of the medical expenses of the insured that should be paid by the basic medical insurance fund shall be directly settled by social insurance agencies, medical institutions and pharmaceutical business units. The administrative department of social insurance and the administrative department of health shall establish a settlement system for medical expenses in different places to facilitate the insured to enjoy the basic medical insurance benefits.