The embodiment of the invention provides a combined electrode, a manufacturing method of the combined electrode, an array substrate and a display device and relates to the technical field of display. By the adoption of the combined electrode and the manufacturing method of the combined electrode, the carrier transmission speed of the electrode can be increased, and therefore the sheet resistance of the electrode is reduced. The composite electrode comprises at least one layer of graphene layer and at least one doping layer, and every two adjacent layers are not both the doping layers. Each doping layer is an aluminum chloride layer or a zinc iodide layer.