Commodity data processing system, method and device

The invention discloses a commodity data processing system, method and device and a shopping cart. The method comprises the steps of enabling the system to receive a customer-substitute order pickingrequest sent by a first client of a user located in a physical store through a server, wherein the request comprises order information associated with the physical store; determining a shopping cart identifier associated with the order; sending order information to a second client located on a shopping cart corresponding to the shopping cart identifier; and receiving a pick-up completion message.By the adoption of the processing mode, a user can purchase commodities in the physical store in an online ordering mode when waiting for food processing, physical store workers replace the user to pick out the commodities and put the commodities into the container, and the user can be informed to take the commodities after picking is completed; in this way, the situation that more shopping cartsare stacked in a canteen fo