An organic light emitting display device comprising: an anode electrode in each of a plurality of pixels defined on a substrate ; a bank and an organic emission layer on the anode electrode; a cathode electrode on the organic emission layer; and an auxiliary electrode connected to the cathode electrode, wherein the auxiliary electrode is provided on the bank, thereby the auxiliary electrode is disposed on a layer different from the anode electrode, wherein the bank comprises: a first bank disposed on each of one side and the other side of the anode electrode; wherein the auxiliary electrode is provided on the first bank , and a second bank disposed on the first bank and on the auxiliary electrode in an area of the auxiliary electrode other than a certain area of the auxiliary electrode in which the auxiliary electrode is connected to the cathode electrode, wherein the auxiliary electrode comprises in this order a lower auxiliary electrode , an upper auxiliary electrode , and a cover auxiliary electrode , wherein in the certain area the auxiliary electrode comprises the lower auxiliary electrode , the cover auxiliary electrode and a separation space (S) between the lower auxiliary electrode and the cover auxiliary electrode ; wherein the auxiliary electrode is connected to the cathode electrode through the separation space (S); wherein an oxidation rate of each of the lower auxiliary electrode and the cover auxiliary electrode is lower than an oxidation rate of the upper auxiliary electrode , and wherein a resistance of the upper auxiliary electrode is lower than a resistance of each of the lower auxiliary electrode and the cover auxiliary electrode ; and wherein the cathode electrode is connected to the lower auxiliary electrode in the certain area. an anode electrode in each of a plurality of pixels defined on a substrate ; a bank and an organic emission layer on the anode electrode; a cathode electrode on the organic emission layer; and an auxiliary electrode connected to the cathode electrode, wherein the auxiliary electrode is provided on the bank, thereby the auxiliary electrode is disposed on a layer different from the anode electrode, wherein the bank comprises: a first bank disposed on each of one side and the other side of the anode electrode; wherein the auxiliary electrode is provided on the first bank , and a second bank disposed on the first bank and on the auxiliary electrode in an area of the auxiliary electrode other than a certain area of the auxiliary electrode in which the auxiliary electrode is connected to the cathode electrode, a first bank disposed on each of one side and the other side of the anode electrode; wherein the auxiliary electrode is provided on the first bank , and a second bank disposed on the first bank and on the auxiliary electrode in an area of the auxiliary electrode other than a certain area of the auxiliary electrode in which the auxiliary electrode is connected to the cathode electrode, wherein the auxiliary electrode comprises in this order a lower auxiliary electrode , an upper auxiliary electrode , and a cover auxiliary electrode , wherein in the certain area the auxiliary electrode comprises the lower auxiliary electrode , the cover auxiliary electrode and a separation space (S) between the lower auxiliary electrode and the cover auxiliary electrode ; wherein the auxiliary electrode is connected to the cathode electrode through the separation space (S); wherein an oxidation rate of each of the lower auxiliary electrode and the cover auxiliary electrode is lower than an oxidation rate of the upper auxiliary electrode , and wherein a resistance of the upper auxiliary electrode is lower than a resistance of each of the lower auxiliary electrode and the cover auxiliary electrode ; and wherein the cathode electrode is connected to the lower auxiliary electrode in the certain area. <EOS>