The utility model discloses a drive cable instrument of shelling, the foot is fixed to cable including being used for fixing a position with the cable, the fixed foot medial surface of cable is equipped with the blade that stretches out fully adjustable. Wherein the fixed foot of cable can block so that fix a position on the exocuticle of cable, and the instrument that prevents is blade position off tracking when cutting, the fixed foot medial surface of cable sets up the blade, and the blade stretches out the cable of the fully adjustable of the fixed foot medial surface of cable, the adaptable different crust thickness of extension elongation of blade difference to can shell out the blade extension amount that the difference specifically set for to the degree of depth according to the cable is actual, so that carry out more accurate operation of shelling out the cable. The operation that this kind of design had promoted the cable work of shelling out greatly becomes simpler, needn't too rely on workman's skill level. To sum up, the utility model provides a drive cable instrument of shelling solves effectively and opens cable efficiency and the low grade problem of success rate of shelling among the electric power construction.