The utility model discloses a stride way unwrapping wire high altitude support uses with the cooperation of hydraulic pressure crane, including the stores pylon, be equipped with the whippletree on the stores pylon, it is equipped with a plurality of jibs to arrange on the whippletree, the both ends of jib articulate respectively has the pole setting, two lie in in the pole setting the below of jib is rotated respectively and is installed the pulley, two the pulley symmetry sets up two just central line coincidence between the pole setting, the pole setting with it orders about two to be equipped with between the jib the inner of pulley combines or detached thrust unit two the inner neighboring punishment of pulley do not is equipped with the annular of arcuation, two during inner combination of pulley two the annular constitutes annular unwrapping wire groove, the pulley is connected with and rotates drive arrangement, thrust unit with drive arrangement connection control device respectively rotates. The utility model discloses stride that way unwrapping wire workload is little, work efficiency is high, can avoid the outer fish tail wearing and tearing phenomenon of insulated wire.