1. For social security, it is mainly aimed at those who have no credit record, no local property, no mortgage record and are not locals. Applicants need to buy social security in the local area for a certain period of time before they can apply for a credit card.

However, different banks have different regulations. Some banks only need to buy social security for three months, some banks require to buy social security for half a year, and some banks require to buy social security for one year before they can apply for credit cards. Therefore, if you can still apply for a credit card after buying social security for half a year, you should consult your local bank.