An organic light emitting display device and a method of manufacturing the same are provided in which a separate photomask process is not added, a pile-up phenomenon of an organic layer is prevented, and a device characteristic is improved. The organic light emitting display device includes a plurality of banks in a boundary portion of a pixel area on a base substrate, an anode electrode in a pixel area on the base substrate, an organic layer on the anode electrode, and a cathode electrode on the organic layer and the plurality of banks.