The embodiments of the invention disclose a touch screen, a method for producing a touch screen, and a touch display device, which relate to a field of display. The touch screen does not need bridging, have high transmittance, and are simple in process, which can not only reduce the production cost but also achieve a high yield of mass production. The touch screen as provided in the embodiments of the invention comprises: a transparent substrate; a first patterned transparent eclectically conductive layer; a patterned insulating layer and a second patterned transparent eclectically conductive layer, which are formed above said transparent substrate successively, wherein among said first patterned transparent electrically conductive layer and said second patterned transparent electrically conductive layer, one is formed with a plurality of drive lines, and the other is formed with a plurality of induction lines; the pattern of said insulating layer is identical with that of said first patterned transparent electrically conductive layer, or identical with that of said second patterned transparent electrically conductive layer.