POS refers to the abbreviation of Point of Sale, which means point of sale. Credit card POS machines refer to credit card swiping machines used in shopping malls, supermarkets, restaurants and other consumer places. POS payment mainly refers to the way that consumers use bank cards to swipe their cards at merchants and complete payment transactions through POS machines. The user can complete the payment by inputting the password and the consumption amount on the POS machine.

compared with traditional cash payment, POS payment has many advantages. First of all, POS payment can improve the efficiency of cashier, which is convenient and quick, and can alleviate the queuing phenomenon during peak hours. Secondly, POS payment can avoid the inconvenience of change and banknote inspection in cash transactions. In addition, for consumers, through POS payment, they can enjoy various preferential policies of bank cards, such as point redemption and discount market price.

With the rapid development of mobile payment, the forms of POS payment are gradually diversified. With the strong support of the government, smart POS machines, Alipay POS and other consumption patterns are gradually becoming popular. In addition, the emergence of blockchain technology in recent years has also promoted the innovation of POS payment. Some emerging payment companies make payment safer, faster and more convenient by combining POS payment and blockchain technology. It can be predicted that POS payment will continue to maintain its important position in the future development trend.