Can I buy social security with the same card number in Chengdu?

You can apply for social security transfer and change information, and the social security card can be used.

The social security card has six basic functions, namely, identification, information recording, self-service inquiry, social security payment and treatment collection, medical settlement and financial functions. There are two in basic account, namely, medical insurance account and bank account. Social security is what we commonly call "five insurances", including endowment insurance, medical insurance, industrial injury insurance, unemployment insurance and maternity insurance.