the main characteristics of electronic payment system based on credit card are that each electronic credit card represents an account, and the bank realizes the payment function of consumers through transfer. Consumers get goods or services first, and then pay through the bank. The bank's handling of credit card accounts lags behind the payment for goods, so it is essentially different from electronic transfer, and it is a "delayed payment" payment method. The electronic credit card payment system needs online operation, allows overdraft, and does not support offline payment. In each payment process, online multi-party authentication and data transmission between customers, merchants, banks and card issuers must be realized, which is too expensive compared with small payment.

convenient. Convenience means that consumers use credit cards to pay online, eliminating the need for traditional payment methods such as Western Union, MoneyGram and Telegraphic Transfer to go to the corresponding institutions first.

real time. Real-time is because everything is done online, so both buyers and sellers can know whether the payment is successful or not in the shortest time.

safe. Security is because the online payment method of credit card is provided by a third-party payment company, but because the third-party payment company cooperates with banks and credit card organizations, there is a powerful bank risk control system and credit card database of credit card organizations as a guarantee in addition to the risk control system of the third party itself. It can shield the payment in bad credit records, suspected card theft and high-risk credit areas (which is why the online payment of credit cards can not reach 1% payment success rate), and ensure the security of transactions to the maximum extent.

the credit card payment system means that consumers must apply for a credit card from the bank, and after obtaining the credit card number and consumption limit, they can make purchases by entering the credit card number during online transactions.

In addition, in recent years, banks and credit card organizations all over the world have put forward the requirements of secure payment certification for third-party payment companies, and only third-party payment companies that have passed the security certification can be qualified to provide credit card online payment services. Foreign currency (visa.mastercardl international credit card 3D and non-3D collection channels)