A mobile terminal and controlling method thereof are disclosed, by which various functions can be provided using a cover having an opening formed therein. The present invention includes a cover having an opening formed therein, a touchscreen, a sensing unit configured to detect whether the cover is open or closed, and a controller, if a memo mode is executed when detecting that the cover is in a closed state through the sensing unit, receiving an input of a memo applied with a pointer to an exposed region of the touchscreen exposed through the opening, the controller, if detecting that that the cover is open through the sensing unit, controlling the inputted memo to be displayed on the touchscreen.