The utility model discloses a dedicated uninstallation device of inserted lift scaffold aims at providing a convenient to use's dedicated uninstallation device of inserted lift scaffold. It is placed on the guide holder when using and has the bottom plate of the opening that the profile is corresponding with the support body cross sectional shape, the confession support body passes, and two symmetries are rotated and are set up in the lead screw of bottom plate opening both sides to and both ends respectively the suit carry out the supporter of fixing a position on two rhizoid poles and through twisting nut on the lead screw soon, the supporter includes two guide parts that are located both ends band -pass hole respectively, and two are the supporting part that U -shaped, opening width were not less than the vertical guide arm diameter of support body and were connected with two guide parts respectively to and the connecting portion of two adjacent sides of supporting part of connection, the adjacent side of supporting part is provided with the recess that supports the support body horizontal pole, immediately, play the vertical guide arm contact that the lead screw made supporting part with the support body of supporter during the use, the recess supported the horizontal pole of support body relevant position department this moment.