The invention discloses a tapping machine which comprises a shell, a cutting device for cutting adhesive tape, a first driving device for driving a product to rotate, a second driving device for driving the cutting device to act, and a coiling device for mounting of the adhesive tape. The coiling device comprises an adhesive tape disc for mounting of the adhesive tape, and a support, wherein the adhesive tape disc is rotatably mounted on the support, and a limiting part for limiting the adhesive tape moving range is arranged on the inner side end face of the adhesive tape disc. The cutting device is provided with a small blade for cutting off the adhesive tape. Since the small blade is adopted, adhesive tape of most specifications can be cut, and the adaptability is high; and since no large force is exerted on the adhesive tape during cutting through the small blade and the limiting part is only arranged on the inner side end face of the adhesive tape disc, the adhesive tape can be conveniently mounted and dismounted, and operation efficiency is greatly improved.