Laser pay-off device

According to the technical scheme, the laser pay-off device is characterized in that the laser pay-off device comprises a protection box, and a laser pay-off device body is arranged in the protection box; and the protection assembly is arranged on the top surface of the protection box and used for protecting the laser pay-off device body, and the laser pay-off device body, a movable pipe, a threaded column, a movable ring, a connecting plate, a second spring, a placement plate, a connecting hole, a movable box, a supporting plate, the protection box and a supporting hole are matched with one another, so that the laser pay-off device body is protected. The laser pay-off device body can be moved to the outer portion of a supporting hole in the top face of the protection box, then a worker uses the laser pay-off device body to conduct scribing, when the laser pay-off device body is arranged, a movable pipe, a second spring, a containing plate, the protection box and a movable box are matched with one another, an