Disclosed is a touch screen input device, which includes a window plate through which a signal is input, a conductive film applied on one surface of the window plate using a conductive polymer, a first adhesive layer applied on one surface of the conductive film, and an anti-noise film applied on one surface of the first adhesive layer using a conductive polymer and thus grounded, so that the conductive film is directly applied on the window plate, thus omitting bonding of an additional film coated with a conductive film to the window plate, thereby preventing the generation of foam and simplifying the manufacturing process. A method of manufacturing the touch screen input device is also provided.