The invention provides an unmanned supermarket system. The system comprises a server system, an entrance access control system, a commodity management system, a check-out system, an exit access control system, an image monitoring system, an environmental monitoring system, a data analysis system and an electronic advertisement system. The unmanned supermarket system of the invention is provided with the entrance access control system; a customer registers as a registered user before entering a supermarket; after the customer enters the entrance access control system, people who travel togetherwith the customer should be confirmed before entering the supermarket, so that it can be ensured that others are not allowed to enter the supermarket. The system is provided with the exit access control system; after the registered user selects commodities and completes payment through the check-out system, the registered user enters the exit access control system; an RFID tag scanning antenna inthe detection area of the exit access control system performs scanning; if it is detected that some commodities have not been paid, an outermost electronic door is closed, and the customer is prompted to return to the check-out system to complete check-out before leaving the outermost electronic door. Therefore, the shopping of the customer is facilitated, and security can be ensured.