Can I still use the social security I bought in other places when I return to my hometown?

Legal analysis: Yes. The process of transferring foreign social security to local social security is as follows:

(1) Before the insured person moves across provinces, the social security agency of the original insured place shall issue the payment certificate of basic old-age insurance;

(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.

Legal basis: Article 2 of the Social Insurance Law of People's Republic of China (PRC) The state establishes social insurance systems such as basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance, maternity insurance, etc., to protect citizens' right to get material help from the state and society according to law in case of old age, illness, industrial injury, unemployment and maternity.