Apparatus and method for displaying correlate messages

PURPOSE: A device and a method for displaying a related massage are provided to enable a user to promptly display a highly related message by promptly displaying the requested message through key input. CONSTITUTION: When a message is stored, it is determined whether the message related to the stored message is found(500,501). If the related message is found, the stored message and the related message are grouped and stored(502). If a request for displaying the message related to the message is received while displaying the message in a screen, the requested message is displayed in the screen(504-507).