Abstract: A customer order processing system includes a register terminal for sequentially transmitting customer order registered in the register terminal to a kitchen video controller, wherein the customer orders as received are sequentially displayed on a display device of the kitchen video controller. Upon completion of preparation for a customer order by a person in charge, the display of that customer order on the display device of the kitchen video controller is erased by manipulating a control switch. A time length between the reception of the customer order and the erasure thereof is measured and stored as service time data in the kitchen video controller 12. The register terminal totalizes the service time data transmitted from the kitchen video controller 12 to issue a management report.