Why are the old and new card numbers of social security cards different?

Legal analysis: the social security number remains unchanged for life, and the card number may change. For example, if the card is lost and changed, the number of the whole area will change. So the number on the certificate is a lifelong number. Social security cards can be used as ID cards. The social security card can be used as an identity card, which is the function of its identity certificate. Identity certificate mainly refers to the identity certificate of enjoying public employment service, employment support policy, insurance registration, payment declaration, social insurance relationship transfer, medical expense reimbursement and treatment qualification certification. At present, social security card is one card and two accounts, which are divided into medical insurance personal account and financial account. It is equivalent to a dual-purpose card, which is both a social security card and a bank debit card. There are cash deposit and withdrawal, transfer, consumer finance and other services, which are more convenient to use. Thanks to chip technology, the security of the new social security card is also stronger. However, it is only used in China, and the credit function is not supported at present, but cross-bank cash withdrawal in the province is free.

Legal basis: People's Republic of China (PRC) Social Insurance Law.

Article 4 Employers and individuals who pay social insurance premiums according to law in People's Republic of China (PRC) have the right to inquire about payment records and personal rights and interests records, and ask social insurance agencies to provide social insurance consultation and other related services.

Individuals enjoy social insurance benefits according to law and have the right to supervise the payment of their own units.

Fifth people's governments at or above the county level shall incorporate social insurance into the national economic and social development plan.

The state raises social insurance funds through multiple channels. People's governments at or above the county level shall give necessary financial support to social insurance.

The state supports social insurance through preferential tax policies.