A fully automated cooking system achieves unmanned and fully automated meal cooking through a mobile transport device, multiple cooking devices, multiple heating devices and other peripheral devices. The mobile transport device uses a circulating conveyor belt to form a cyclic travel path, along which a feeding station area, a heating station area, a discharging station area and a cleaning station area are defined. Each station area is provided with corresponding equipment, such as feeding device, heating device and cleaning device. Each cooking device includes a swivel mechanism disposed on the circulating conveyor belt, and a heating container coupled to the swivel mechanism. The heating container can stir the ingredients when heated and pour out food when cooking is complete. The heating device can be an electric heating device or a fuel gas heating device for heating the heating container to cook food, thereby achieving fully automated cooking.