The invention discloses an unmanned system for automatic food processing and sales. The system comprises an operation module, a food supply module and a food processing module, wherein the food supplymodule and the food processing module are arranged along the food moving path in sequence. The operation module is located on one side of the food processing module. The unmanned system further comprises a controller, a food ordering area and a food taking area, wherein the food taking area is located on one side of the food processing module; the controller is in signal connection with the foodordering area, the food supply module, the operation module and the food processing module. According to the unmanned system for the automatic food processing and sales, manual carrying, cooking and sales are not needed, the labor cost is reduced to the greatest extent, optimal standardized cooking procedures are provided, it is ensured that an unmanned store using the system achieves an optimal cooking effect, the situation that food quality differences are caused by human factors in an ordinary chain store is avoided, the speed of operation in the store is increased, and the unmanned systemcan be independently managed in various places.