A mobile terminal includes a main body case, a user input unit configured to detect an input of a control command in a manner that one side of the user input unit is arranged to a side of the main body case and a controller configured to control according to the control command detected by the user input unit. The user input unit includes a rotatable input unit housing combined with the side of the main body case, a rotation detection unit configured to detect a rotation of the input unit housing and deliver a rotation input to the controller and a camera module mounted on the input unit housing. The mobile terminal can expand an input function using a stem button.