A method of manufacturing an organic light emitting display device includes defining pixels on a substrate, each of the pixels including a first area in which light is emitted in a first direction and a second area in which light is emitted in a second direction opposite the first direction; forming first electrodes respectively disposed in the first area of each of the pixels; forming a sacrificial layer in the first area and the second area of each pixel to cover the first electrodes; forming openings in the sacrificial layer to open a patterning area in the respective second area of each of the pixels; forming a conductive layer on the patterning areas and the sacrificial layer; removing the sacrificial layer; forming an intermediate layer including an organic emitting layer; and forming a third electrode on the intermediate layer.