Debit card refers to a bank card issued by the card issuer to the cardholder without a credit limit, and the cardholder deposits first and then uses it.

Debit cards are divided into debit cards, special cards and stored-value cards according to their functions. Debit cards cannot be overdrawn. Debit cards have the functions of transferring money, depositing and withdrawing cash, and spending money. A special card is a debit card with special purposes that is used in a specific area (except for department stores, restaurants, and entertainment industries). It has the function of transferring money and depositing and withdrawing cash. A stored-value card is a prepaid wallet debit card in which the bank transfers funds to the card for storage at the request of the cardholder and deducts money directly from the card during the transaction process.

Bank cards (UnionPay cards) are divided into credit cards and debit cards, and credit cards are divided into credit cards and quasi-credit cards.

Debit card is an ordinary savings card, which is a current account and can be used for consumption, ATM deposits and withdrawals, etc. Credit cards can be used for purchases, ATM deposits and withdrawals, etc. The biggest advantage is that you can have an overdraft (with a certain credit limit). A credit card refers to a credit card in which the card-issuing bank gives the cardholder a certain credit limit, and the cardholder can consume within the credit limit and then repay. A quasi-credit card refers to a credit card in which the cardholder deposits a certain amount of reserve fund in accordance with the bank's requirements. When the reserve fund is insufficient to pay, the cardholder can overdraw within the credit limit specified by the card issuer. Debit cards are divided into debit cards, special cards and stored-value cards according to their functions. Debit cards cannot be overdrawn. Debit cards have the functions of transferring money, depositing and withdrawing cash, and spending money. A special card is a debit card that is used in a specific area and has a specific purpose (referring to use outside department stores, restaurants, and entertainment industries). It has the functions of transferring funds and depositing and withdrawing cash. A stored-value card is a prepaid wallet debit card in which the bank transfers funds to the card for storage at the request of the cardholder and deducts money directly from the card during the transaction process.

Debit cards are becoming increasingly popular and can easily replace cash and checks for purchases and transactions. In recent years, it has gradually become the most popular payment card. There are hundreds of millions of debit cards in use around the world.

If the debit card is only available at local merchants, it will usually have the logo of the card issuer and the processing system it applies to.