A touch screen, a display device and a fabrication method of a touch screen are provided. The touch screen includes a gate layer, an insulating layer, a source-drain electrode layer, a first Indium Tin Oxide (ITO) layer, a protective layer and a second ITO layer. The insulating layer is overlaid on the gate layer, the source-drain electrode layer is overlaid on the insulating layer, the first ITO layer is overlaid on the source-drain electrode layer, the protective layer is overlaid on the first ITO layer, and the second ITO layer is overlaid on the protective layer; the gate layer includes a touch driving electrode, the source-drain electrode layer includes a touch sensing electrode line, and the second ITO layer includes a touch sensing electrode pattern.