The utility model provides a cable insulation remover which characterized in that is equipped with one section sleeve, and the vessel walls of sleeve one side is equipped with the spout the same with telescopic axis direction, is equipped with the slider with spout matched with in the spout, and the outside of slider is equipped with operating handle, and the inboard of slider is equipped with the slice cutter that the cutting edge direction is the same with the spout direction, and the vessel walls of spout opposite side is the opening form, and the correspondingly is equipped with the connection lug on the opening vessel walls, is equipped with the screw hole on the one lug, is equipped with the connecting hole on another lug, and the locking bolt passes connecting hole and screw hole threaded connection, and the one end of locking bolt is equipped with the clamp handle, and the other end is equipped with the length flag groove, the utility model discloses the when used, according to with cutter location in the slider, the cable is fixed the cable in the sleeve through the clamp handle in arranging the sleeve in, judges telescopic locking degree through the measurement groove, operating handle and supplementary operating handle make the slider drive the cutter and exscind the cable coat, easy operation, safe in utilization, advantage such as work efficiency is high, the cutting is of high quality.