A mobile terminal and controlling method thereof are disclosed. The present invention includes a touchscreen and a controller controlling the touchscreen to output a running screen of a 1st application including a prescribed information, the controller receiving a handwriting input through the touchscreen, the controller controlling the touchscreen to output a running screen of a 2nd application mapped to the received 1st handwriting input to a prescribed region on the outputted running screen of the 1st application, wherein the running screen of the 2nd application includes at least one portion of the prescribed information. Accordingly, a control of running an application and a control of sending a message are facilitated based on a handwriting input.