Abstract: An enclosure is provided for an electronic device, including a single-sheet metal enclosure, which has a frame-like board arranged at a central portion thereof. The frame-like board forms a central opening. The frame-like board has opposite edges, which are bent downward and further extend outward to form parallel side wings, in which fastening holes are defined. The side wings and the frame-like board together form an accommodation space on an underside of the frame-like board. A plurality of fastening elements is respectively fit through the side wings of the enclosure and is secured to a circuit board to have the enclosure securely fit on an electronic device.