[Summary] [Object] An object of the present invention is to enhance operability of a mobile communication terminal to be foldable by directing a display panel outward. [Means for Settlement] A folding-type mobile communication terminal including a thin operation case 1 with an operation panel being formed, a thin display case 2 with a display panel being formed, and a movable connector 3 to connect the operation case 1 and the display case 2, in which transition can be made between a normal open state of expanding the both cases 1 and 2 by directing the operation panel and the display panel to the same direction, and a reverse close state of being folded by directing the display panel outward and opposing the main surfaces of the both cases, and having a main multifunction key 14 to be provided in the operation panel and capable of performing two or more different operation inputs corresponding to pressing portions, and a side multifunction key 26 to be provided in the end surface of the operation case 1 and capable of performing the same operations with the main multifunction key 14 to achieve the same operation inputs therewith.