Skidproof insulating ladder

A skidproof insulating ladder belongs to electrician climbing operation instruments and is composed of an insulating ladder and a skidproof layer fixed to the surface of an upright column of the insulating ladder, wherein the skidproof layer is fixedly mounted on the lapping working surface of the upright column in a range of 1/3 of the whole length of the ladder body away from the top end of the insulating ladder, and the skidproof layer is fabricated from an insulating, soft, wear resistant, oilproof rubber material; alternately, other materials having similar functions can be used to realize the skidproof function; the skidproof material is fixed to the surface of the upright column of the insulating ladder through hot pressing or in other ways, so that the upright column is closely jointed integrally with the skidproof layer; and once the skidproof layer is additionally arranged, the friction coefficient between the lapping working surface of the upright column and a framework or a device is greatly incre