The invention discloses a scrap cutter processing method and belongs to the field of cutter processing. The upper surface of a scrap cutter edge body is an arc-shaped surface, the cutting edge surface of the scrap cutter edge body is a spiral arc surface, the bottom surface and side surface of a scrap cutter edge are connected with a scrap cutter edge bulge. The processing method comprises the following steps of: performing forging treatment on a blank made of a selected material, performing milling processing, then grinding a plane, and further performing drilling, so as to obtain a bolt hole and a thread hole; performing thermal treatment on the blank, quenching the blank, and performing tempering for three times, wherein the fitness reaches 58-59HRC; and after fine grinding processing is finished, performing linear cutting processing to obtain the scrap cutter edge bulge; performing grinding, then processing the arc-shaped surface of the scrap cutter ; and finally processing an edge surface in a processing center. According to the scrap cutter processing method, the scrap cutter structure and the processing process are improved, so that the interior tenacity of the scrap cutter is improved, and the scrap cutter can bear relatively high cutting force, is low in stripping possibility, and is prolonged in service life.