A mobile terminal and an operation section display method are provided, in which predetermined display data can be displayed in both of key frame inside regions and key frame outside regions in an operation section of the mobile terminal. This is achieved by the mobile terminal including the operation section, a display device, an application control section and a display control section. The operation section has a plurality of keys. The display device displays operation section display data for the operation section. The application control section controls an application instructed by the user who operates the plurality of keys to start. The operation section display data is supplied to the display device when the application is started and the operation section display data is displayed on a region included in the operation section and in both of key frame inside regions and key frame outside regions of each of the plurality of keys.