A roasting machine is provided, including a base, a heating device, a body, and a flow guiding device. The heating device is received inside the base to generate a hot air flow. The main body is provided on the base, and has a roasting room and a flow passageway, wherein the flow passageway communicates with the heating device. The flow guiding device includes a first diversion block and a plurality of guide vanes, wherein the first diversion block is received inside the roasting room the guide vanes are received inside the flow passageway and under the first diversion block. Each of the guide vanes is inclined, and the guide vanes surround around an axis which passes through the center of the first diversion block. Whereby, the flow guiding device is capable of changing the flowing direction of the hot air flow to effectively stir the ingredients in the roasting room.
