A method of setting an ending time of an application of a mobile communication terminal, a method of ending an application of a mobile communication terminal, and a mobile communication terminal for performing the same are provided. The method of ending an application of a mobile communication terminal includes performing a multitasking function in which a specific application enters a background state as another application is executed while the specific application is executed, displaying a menu screen for selecting whether to end the specific application when a predetermined end time of the specific application elapses from a time point at which the specific application entered the background state; and ending the specific application, if a user requests to end the specific application through the menu screen.