Fecha de publicación: 08/01/2014 Fuente: WIPO Food Portada The invention relates to a food product automatic conveying and automatic purchasing device and a food product automatic conveying and automatic purchasing method for a restaurant. The device comprises food product conveying tables, food product locking mechanisms, card plug-in unlocking mechanisms and food product purchasing cards, wherein the food product conveying tables are used for setting the food product locking mechanisms and conveying food products along a set circulation path under the driving of a power device, the food product locking mechanisms are used for locking service plates and drinks respectively on the food product conveying tables to prevent customers from taking the food products freely, the card plug-in unlocking mechanisms allow the customers to take off selected and purchased food products, and the food product purchasing cards are used for opening the card plug-in unlocking mechanisms with demarcated food product price identical to food product purchasing face value. The food product automatic conveying and automatic purchasing device can convey food, dishes, drinks and other various food products continuously through the food product conveying tables moved between the restaurant and a kitchen in a recycle mode, the customers are made to be capable of purchasing needed food products by inserting cards by sitting beside dining tables beside the circulation path in the restaurant, therefore, personnel for meal ordering and meal delivering of the restaurant can be replaced, employees of the restaurant can be reduced by more than a half, the operating cost of the restaurant is reduced, and competitive advantages can be gained.