Abstract: A method for displaying a thumbnail group on an idle screen and a mobile communication terminal are disclosed. The mobile communication terminal includes: a storage for storing a communication program; a terminal controller for executing the communication program; a display for displaying the communication program executed by the terminal controller; and an input unit for receiving commands from a user, wherein the terminal controller, through executing the communication program, controls to display a thumbnail group including frequent contacts on a certain portion of an idle screen, and upon receiving an activation command from the input unit, turn the screen to an active mode screen for displaying graphic image information of the frequent contacts, and in response to the input unit selecting a specific contact, display detailed information on the particular member in the contacts.