The invention comprises a folder having a display part on the inner surface thereof, and a main body having keys which is connected by a swivel hinge to the folder, while the keys have extra functions when the folder is rotated, and with the portable terminal comprising a folder having a push protrusion that is formed to correspond to at least one of the keys when the main body and the folder are superposed with the inner surface of the folder exposed to the exterior, the keys on the main body may be used by applying pressure on the folder when the display part is exposed to the exterior via a 180° rotation of the folder.