The invention relates to the technical field of food processing equipment, in particular to a duck roasting machine. The duck roasting machine comprises a machine body, a heating device, a rack, driving device and a control device, wherein the machine body is provided with a power chamber, a duck roasting chamber and an oil collecting chamber, the rack and the driving device are arranged in the machine body, the rack comprises a tray, a main rotary shaft and an auxiliary rotary shaft, a plurality of hooks are connected on the periphery of the tray through bearings, a main rotary motor is connected with the main rotary shaft, an auxiliary rotary motor is connected with the auxiliary rotary shaft, the main rotary motor drives the tray to rotate around the main rotary shaft, the auxiliary rotary motor drives the hooks to rotate, the heating device roasts ducks, and the control device controls the working states of the main rotary motor, the auxiliary rotary motor and the heating device. The duck roasting machine can rotate ducks automatically, manual turning is not required, ducks are uniformly heated, the quality of roasted ducks is improved, and the labor intensity of workers is reduced.