Method and apparatus for providing user interaction in laser

PURPOSE: A method and an apparatus for providing user interaction in LASeR(Light Application Scene Representation) are provided to offer useful information to a user by visualizing realistic effect by sensing information on a display. CONSTITUTION: An input unit(204) receives a control from a user. A control processing unit(206) analyzes the control to create drag event information containing the event type information and the event property information. The event type information shows the type of control. A movement processing unit(208) created the drag element information for showing the movement coping with the control in a display by referring to the drag event information.