What should I do if I lose my file after buying social security?

At present, the social security information of most provinces and cities is entered into the information system, and a few places are still paper social security files. If your paper social security file is lost, you can find your insured unit, bring up the payment certificate and ask the Social Security Bureau to reissue it for you.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.