The utility model relates to a cable insulation sinle silk stripping off device belongs to old and useless cable and retrieves technical field. The inefficiency scheduling problem is peeled off to its sinle silk of having solved current cable insulation separation existence. The utility model discloses an install the cutting device on the slider, slider and the guide rail of fixed mounting on the workstation cooperate, and degree of depth lead screw is installed to two guide rail inboards, and the slider passes through the connecting rod and links to each other with the nut of suit on degree of depth lead screw, and degree of depth lead screw axis mid point both sides screw thread revolves to on the contrary, still including being located the guide rail front side, installing radial guide pulley and horizontal guide pulley on the workstation. The utility model discloses a degree of depth lead screw is adjusted rotary cutter's interval and is come cut cable plastics resin insulation layer, and has realized the not segmentation of the continuous length of metal conductive core, makes cable metallic conductive core repeat recycle. The utility model discloses save manpower and materials, reduced intensity of labour, improved work efficiency greatly.