Can I still use Beijing's social security card when I return to my hometown?

It works. The process of transferring foreign social security to local social security is as follows: (1) Before the insured person moves across provinces, he shall issue the Basic Endowment Insurance Payment Voucher to the social security agency in the original insured place; (2) The insured holds the payment voucher, household registration book, ID card, etc. Apply to the social security agency of the new place of employment for the continuation of the relationship; (3) The social security agency of the new place of employment shall review whether the applicant meets the requirements within 15 working days; (4) After receiving the contact letter 15 working days, the social security agency of the original insured place will clear up whether the applicant's insurance payment is in arrears and handle the transfer of the old-age insurance fund, terminate the applicant's local insurance relationship, and issue the basic old-age insurance relationship transfer and connection information form to the new insured place; (5) The social security institution of the newly insured place shall complete the relevant procedures within 15 working days after receiving the information form and the transfer fund. 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.