In an air conditioner with a front panel projected forward, in order to increase stiffness of a body cabinet and to improve maintainability and appearance, the body cabinet is composed of: a base panel; a top panel; and a front panel, and the front panel is formed only with an air outlet port to be finished into a refined appearance having less seams, and it is adopted as basic configuration to support a front end side of the top panel by a drain pan, and further a front end side of the front panel and the front end side of the top panel are coupled to each other.