If it is a China Merchants Bank credit card, the number will not be changed when the card is expired, but the number will be changed when the card is reported lost. Regulations on all-in-one card replacement and number change: ① The card number must be changed when "upgrading/downgrading a card"; 8-digit cards, all-in-one cards with BIN numbers of 955550 and 622580, and UnionPay all-in-one cards with 9 card replacement times must be replaced when changing cards. Card number; ② For UnionPay Golden Sunflower Card, the card number remains unchanged; ③ If the UnionPay magnetic stripe card is replaced with an IC card, our bank currently has a "replace the original card number with an IC card" business, which means that the standard UnionPay magnetic stripe card can be retained " "Original card number" is replaced by standard UnionPay IC card business. Please note whether the card number will be changed in the "replacement of damaged card" and "replacement of card with written report of loss", please click on the following options for further details.