A display apparatus for position detection and separation of a plurality of display panels, and a control method thereof. A display apparatus includes a cabinet, a plurality of display panels disposed in a first direction of the cabinet, an indicator disposed in a second direction opposite to the first direction, a communicator configured to receive an external signal for detecting positions of the plurality of display panels, and a controller configured to control the indicator corresponding to the display panel which becomes a position detection target to be turned-on based on the external signal received by the communicator.