The utility model discloses a glass device of slotting, including frame and delivery track, be provided with unable adjustment base in the frame of delivery track one side, unable adjustment base is last to be provided with perpendicular support body, and the lateral surface of perpendicular support body is provided with vertical ram and vertical smooth saddle, and vertical smooth saddle setting is in the both sides of vertical ram and fix on perpendicular support body, and vertical ram is established and to be reciprocated at the track that vertical smooth saddle becomes, and the lower extreme of vertical ram is provided with the motor, is provided with the emery wheel on the output shaft of motor, and the emery wheel is located the top of delivery track, the top swing joint of vertical ram has a screw rod, and the top of perpendicular support body is provided with the internal thread hole, and the screw rod upwards stretches out perpendicular support body through the internal thread hole from the lower extreme of perpendicular support body, and when the screw rod was rotatory, the screw rod made vertical ram reciprocate through the internal thread hole, and then adjusts the relative position of emery wheel and delivery track, adjusts the grooved degree of depth.