The invention discloses a full-automatic production line of moon cakes. The production line comprises a flour filling forming machine, moon cake moulding presses, a transfer and arrangement device anda baking device. A conveyor belt and a middle conveyor belt are arranged on the flour filling forming machine and the moon cake moulding machine respectively, the two conveyor belts are connected with each other, and a dough shaping conveyor belt and a dough shaping plate which are matched with each other for use are arranged on the moon cake moulding presses on two sides of the middle conveyor belt; a transfer and arrangement conveyor belt and a transmission rack for conveying moon cake trays are arranged on the tray transmission device, a moon cake tray manual placement zone is arranged onthe transmission rack at the front end of the transfer and arrangement conveyor belt, and a placement rack for placement of oil paper is arranged on the side surface of the transmission rack; a walking rack is arranged above the placement rack and the transmission rack, an oil paper placement device which automatically places the oil paper into the moon cake trays is arranged on the walking rack,the transmission rack is connected with a transmission roller on the baking device, and an automatic oil pasting device is arranged on the baking device. The full-automatic production line of the mooncakes is simple in structure and reasonable in design, and can improve the working efficiency, reduce the workload of workers and improve the quality of the moon cakes.