Why do some people have two social security cards at home and in other provinces?

The reason is: if it's different cities, that's fine. At present, social security is only a municipal co-ordination. If you go to work in a city, you will get a social security card. I don't know if it will merge in the future, but it is impossible to merge in the short term. So Doka is normal and there will be no consequences.

You can't cancel it, because the social security card can only be used in the place where you bought social security. You can't enjoy the treatment if you cancel it. It has no effect on retirement, as long as you transfer all the old-age insurance in different places to your retirement place when you are about to retire. There is no need to do anything at present.

Social security can be transferred to one place, social insurance transfer process:

1. After the insured establishes the basic old-age insurance relationship in the new employment place and pays the fee according to the regulations, the employer or the insured puts forward a written application for the transfer and continuation of the basic old-age insurance relationship to the social security agency in the new employment place;

2. The social security agency of the newly insured place will review the application for transfer and continuation within 15 working days, send a consent letter to the social security agency where the insured person's original basic old-age insurance relationship is located, and provide relevant information; Do not meet the transfer conditions, make a written explanation to the applicant or the insured.