An object of the present invention is to provide a mobile electronic device and an input method thereof, all of which are capable of canceling a restricting feature for preventing erroneous operations, and capable of quickly executing a desired feature. In a restricted state, in a case in which a control unit determines that a touch detected by a detecting unit is a first touching operation, the control unit cancels the restricted state, and causes a display unit to display a screen that was displayed before the restricted state, and in a case in which the control unit determines that the touch thus detected is a second touching operation, the control unit cancels the restricted state, and executes a predetermined function.