It is an object of the preset invention to provide a cabinet for the electronic device which ensures sufficient rigidity of the device even if made thin. The cabinet (3) according to the present invention has central chassis (4) in which a device main body is provided, and an upper case (5) and a lower case (6), which hold central chassis (4) between them and accommodate the device main body. The upper case (5) and lower case (6) are made thinner than conventional parts of such cabinets so as to make the device smaller. The central chassis (4) serves as a reinforcing material and can improve the rigidity of cabinet (3), thereby ensuring sufficient rigidity for the cabinet (3) even if the upper case (5) and the lower case (6) are made thinner to achieve a smaller size of the electronic device.