Touch screen and processing method thereof

The invention is suitable for the technical field of touch and provides a processing method of a touch screen. The method comprises the steps of performing coiling shrinkage and blackening processing on a base material; covering the surface of the blackened base material by photo-sensitive silver paste with consistent thickness, and performing pre-drying processing; exposing the photo-sensitive silver paste through a photomask comprising function area wire and driving wire patterns to form an exposed silver paste integrated pattern; cleaning the exposed base material, fixing the exposed silver paste integrated pattern, and performing solidification and baking on the exposed silver paste integrated pattern; and performing insulated printing processing on the surface of the exposed silver paste integrated pattern, and pasting a protective film. The exposed silver paste integrated pattern comprises function area wires and peripheral driving wires, so that the function area wires and the driving wires do not need to be produced separately, the technological process is reduced, the cost is reduced, and the production efficiency is improved; the function area wires and the driving wires are same in thickness, so that the problem of air bubbles between sensors and lenses is avoided and the product yield is increased; and ITO is replaced with the photo-sensitive silver paste, so that low square resistance and relatively good flexibility are realized.