That date is the expiration date of the card. General bank cards are replaced with 1 in 3 years (5 years for individual banks). When it expires, it can be replaced free of charge at the bank outlet with the certificate.

The validity period of a credit card is expressed as "month/year". For example, 10/ 12 means that the validity period is 20 12 10 3 1. After the expiration of the validity period, the bank will decide whether to let customers continue to use credit cards according to their past use of credit cards.

Extended data:

The credit card has at least the following information on its surface:

Front: name and logo of the issuing bank, credit card type (organization logo) and holographic anti-counterfeiting logo, card number, English or pinyin name, activation date (generally calculated to month) and effective date (generally calculated to month). The chip is attached to the front of the newly issued card, and the chip account and the card magnetic stripe account are two relatively independent accounts.

Back: the magnetic stripe of the card, the cardholder's signature column (which must be signed after activation), the service hotline, the four or all digits after the card number (to prevent fraudulent use), and the credit card security code (the three digits immediately after the signature column on the back of the credit card are used for credit card activation, password management, TV, telephone and online transactions, etc. ).

Baidu encyclopedia-credit card

China Construction Bank-The credit card is about to expire. When will the bank issue me a new card?