Abstract: A clearing instruction after accounting is completed is automatically sent. An order management apparatus includes: an order entry unit configured to transmit, when order data including dish data and serving destination data is input, the order data to a kitchen apparatus; an order data storage unit configured to store the order data; a serving control unit configured to generate, when cooking of the dish is completed, serving instruction data including serving destination data of the dish and transmit the serving instruction data to a serving robot; an accounting unit configured to perform accounting based on the order data; and a clearing control unit configured to generate clearing instruction data including the serving destination data of the serving destination for which the accounting has been completed and transmitting the clearing instruction data to the serving robot.