Method for reducing booting time of mobile communication terminal

A method is for reducing booting time of a mobile communication terminal. The method includes the steps of driving a User Interface (UI) task concerning performing of communications created from a memory while the mobile communication terminal is being booted; simultaneously performing an initialization of an application program in a booting initializing unit that is to be separated from the UI task, and executing an initial screen in the UI task; and completing the initialization of the application program and execution of the initial screen in the UI task, and switching to an idle screen which a user can use. As a result, booting time of the mobile communication terminal is reduced.