The utility model discloses a wire rope cutter for cutting and processing a wire rope (3) for a rope pulley type window lifter. An electrode (1) and an electrode (2) are arranged on the wire rope cutter and are sequentially connected with a power source. The electrode (1) and the electrode (2) are parallel, and an adjustable clearance is arranged between the electrode (1) and the electrode (2); a through hole (4) and a through hole (5) which are positioned on the same axis are sequentially arranged on the electrode (1) and the electrode (2), and the processed wire rope (3) passes through the through hole (4) and the through hole (5); and the through hole (4) and the through hole (5) are in clearance fit with the wire rope (3). After the technical scheme is adopted, the wire rope is cut off by an intense current fusing mode, thus, the wire rope cutter effectively overcomes the defect of blade cutting, and solves the problems of low production efficiency, easy abrasion of a cutting blade, inaccurate cutting precision, dispersion of cutting points, and the like.