Conclusion: When China Merchants Bank's credit card is replaced by a new card upon expiration, the card number will not change, except in special circumstances, such as replacement of a new card after it is lost or card type replacement (such as changing to another card type after the youth card expires). The following are the details:

1. Usually, when the credit card center sends a new card directly, the card number remains unchanged, only the expiration date and the CVV2 security code behind it are replaced.

2. If the new card is not received in time and confirmed lost, the bank will reissue a new card, and the card number will be changed to increase the security of the card.

3. If you hold a specific type of youth card (such as China Merchants Bank young Card), the original card type will not be renewed due to age restrictions, and other card types will be allocated to the new card, and the card number will change at this time.

When applying for a credit card, you should pay attention to the application conditions of China Merchants Bank, including age limit, identity certificate and company application. For the first application, you need to fill in the information completely and agree to the bank's credit inquiry. The card issuer will decide whether to issue cards and the credit limit according to the applicant's situation.

after receiving the credit card, the cardholder should sign in the signature column and use the specified password to conduct the transaction. For more information, please refer to the official information of China Merchants Bank Credit Card.