A wall-mounted type microwave oven includes an oven body and a single lighting device which illuminates a cooking chamber of the oven body and a kitchen space below the oven body. The lighting device is provided at a lower portion of the oven body to illuminate the cooking chamber and the kitchen space. The cooking chamber includes an upper opening formed at its bottom plate to allow light emitted from the lighting device to pass into the cooking chamber therethrough, and the oven body includes a lower opening formed at its bottom plate to allow the light to pass to the kitchen space.