If you use a card: magnetic stripe card, ordinary card and UnionPay gold card are valid for a long time; The validity period of international debit card and UnionPay Golden Chamber Card is 3 years, and the validity period is marked on the front of the card; One-card IC card is valid for 5- 10 years; All-in-one M+ card: IC media card is valid for 10 years, and pure magnetic stripe card is valid for a long time. If credit cards are used: after September 18 and September/20 10, the new UnionPay credit card ordinary card and UnionPay credit card gold card issued by China Merchants Bank are valid for eight years, while other types of credit cards are still valid for five years; The validity period can be found by two sets of numbers below the credit card number. For example: 08/ 15-09/20, one month before/,one year after/,08/ 15 refers to the printing of business cards in August of 20 15, and the card expires at the end of September 2020.