A working machine comprising: an operation device to conduct operations of the working machine ; a control device to control the working machine between an operation allowable state and an operation restriction state, the operation allowable state allowing the working machine to be operated, the operation restriction state restricting the operations conducted by the operation device in comparison with the operation allowable state; and a display device having: a display portion ; and an input operation portion , wherein the control device performs control under the operation restriction state when a predetermined input operation is conducted through the input operation portion , the working machine characterized in that : the working machine comprises a storage portion to store whether the control is under the operation allowable state or the operation restriction state before the predetermined input operation is conducted, wherein when the display device has received input to the input operation portion after the predetermined input operation is conducted, the control device switches the operation restriction state to the operation allowable state when the control before the switching is under the operation allowable state, and switches the operation allowable state to the operation restriction state when the control before the switching is under the operation restriction state. an operation device to conduct operations of the working machine ; a control device to control the working machine between an operation allowable state and an operation restriction state, the operation allowable state allowing the working machine to be operated, the operation restriction state restricting the operations conducted by the operation device in comparison with the operation allowable state; and a display device having: a display portion ; and an input operation portion , wherein the control device performs control under the operation restriction state when a predetermined input operation is conducted through the input operation portion , the working machine characterized in that : the working machine comprises a storage portion to store whether the control is under the operation allowable state or the operation restriction state before the predetermined input operation is conducted, wherein when the display device has received input to the input operation portion after the predetermined input operation is conducted, the control device switches the operation restriction state to the operation allowable state when the control before the switching is under the operation allowable state, and switches the operation allowable state to the operation restriction state when the control before the switching is under the operation restriction state. the working machine comprises a storage portion to store whether the control is under the operation allowable state or the operation restriction state before the predetermined input operation is conducted, wherein when the display device has received input to the input operation portion after the predetermined input operation is conducted, the control device switches the operation restriction state to the operation allowable state when the control before the switching is under the operation allowable state, and switches the operation allowable state to the operation restriction state when the control before the switching is under the operation restriction state. <EOS>