A cooking device comprises a frame including supporting parts to support a tray on which food is put; a partitioning plate to divide an inner space of the frame into a cooking chamber and an air flow chamber; a burner in the air flow chamber; and a fan in the air flow chamber, wherein the partitioning plate includes an air inlet to introduce air inside the cooking chamber into the air flow chamber, and air outlets to discharge air heated by the burner in the air flow chamber to the cooking chamber, and the air outlets include a first air outlet and a second air outlet located at a lower level than the first air outlet, at least a part of the second air outlet is located at a lower level than the tray while the tray is supported by a lowermost supporting part of the supporting parts.