Grinding disc special for mobile phone glass lens

The utility model relates to a grinding disc, and in particular relates to a grinding disc special for mobile phone glass lens. The technical problem to be solved by the utility model is to provide the grinding disc which achieve the same polishing degree on upper and lower surfaces of the glass lens, automatic watering an time and labor saving. In order to solve the technical problem, the utility model provides the grinding disc special for the mobile phone glass lens, the grinding disc including a grinding disc body, lines and a water pipe, wherein the lines are arranged on the lower surface of the grinding disc, and the water pipe is arranged at the center of the grinding disc body. According to the grinding disc, the defects that the glass lens has different polishing degrees on the upper and lower surfaces, needs to be manually periodically watered, and is wasting in time and labor; and the grinding disc which has the same polishing degrees on the upper and lower surfaces, and is automatically watered, t