A terminal for controlling a display of a multi window includes: an event detecting unit for detecting an execution, change, or finish event of an application; a display analyzing unit for analyzing screens of applications executed on a multi window which includes a mini window; a display controller for controlling a location and size of the mini window based on an analysis result of the display analyzing unit; and a display unit for displaying the mini window at a controlled location. Accordingly, a window to which an always-on-top (AOT) operation is set is automatically disposed not to disturb the use of an application executed in a non-mini window, thereby giving convenience to a user.