Disclosed is an organic light emitting display device. The organic light emitting display device includes a display panel, a plurality of first flexible circuit films, a plurality of first driving ICs, a plurality of second flexible circuit films, and a plurality of second driving ICs. The display panel includes a plurality of pixels including a pixel circuit connected to a gate line, a data line, and a high-level voltage line. The first flexible circuit films are connected to a first pad part of the display panel, and supply a high-level voltage to the high-level voltage line. The second flexible circuit films are connected to a second pad part of the display panel, and supply the low-level voltage to a cathode electrode layer.