Mobile communications terminal having adaptive memo function and method for executing memo function

Provided is a mobile communication terminal and more particularly a mobile communication terminal for easily executing a memo function and a method thereof, whereby the memo function can simply be executed according to a state of the mobile communications terminal to thusly easily compose a memo or easily confirm memo contents, the composed memo can be displayed on a standby screen to thus allow a user to recognize the memo being composed and also allow the user to confirm the memo contents directly on the standby screen without undergoing complicated menu selection procedures, the memo can automatically be stored upon ending a call or occasionally, and the composed memo can immediately be sent in a text message format.