Electronic supermarket shopping system based on electronic certificates

The invention provides a system and a method for electronic supermarket shopping based on electronic certificates. The system comprises an electronic commodity management device, a payment cashier device, an electronic certificate generating device, a verification device and a data statistics device, wherein the electronic commodity management device is used for displaying commodity or service information for consumers, the payment cashier device is used for completing payment for the consumers, the electronic certificate generating device is used for transmitting the electronic certificates to communication devices of the consumers, the verification device is used for completing verification, account checking, settlement, transaction and the like, and the data statistics device is used for summing up the number of sold commodities or service according to verification results and analyzing sales, so that the electronic commodity management device can timely update the displayed commodities or service to be so