The utility model discloses a scribing broken glass groove. The scribing broken glass groove comprises a groove body and an outlet at one side of the groove body, wherein the external side of the groove body is provided with supporting convex slots. The supporting convex slots are symmetrically arranged at left and right sides of the groove body. According to the scribing broken glass groove which is convenient for dumping broken glass and cannot cause halt of equipment without reasons, the inner side of the groove body is processed to be flat and smooth, the original supporting convex slots arranged at the inner side of the groove body are newly arranged outside the glass groove body, thus, the broken glass is not likely to be blocked in the groove body, and the broken glass can be smoothly dumped and cannot be locked in the groove body when the groove body is inclined, sequentially, frequency of frequent halt of equipment without reasons is reduced, and production efficiency is improved.