The invention relates to an edge polishing method for an OGS capacitive touch screen. The edge polishing method for the OGS capacitive touch screen includes steps that (1) cleaning the OGS capacitive touch screen; (2) pasting protective films on two lateral surfaces of the cleaned OGS capacitive touch screen, wherein each edge of each protective film surpasses each edge of the OGS capacitive touch screen by 0.1 to 3 millimeters; (3) placing in polishing liquid to polish the micro-crack surface layer of each side of a glass substrate of the OGS capacitive touch screen; (4) cleaning and drying. The stability of the method for removing the micro-crack surface layers through chemical polishing is decided by the uniformity of the reactive active substance in the polishing liquid, the concentration of the reactive active substance in the polishing liquid easily achieves uniform through temperature and liquid flow control, and accordingly the stability is high; the crack is difficult to generate bubble, the polishing liquid can completely enter the bottom of the crack to polish, and the edges of the polished OGS capacitive touch screen have better compression resistance.