The utility model discloses a double line cluster insulator earthing terminal link fitting's change instrument, including lead screw, screw base, lead screw rocking handle, threading thick stick rocking handle, screw base are passed through in proper order to the one end of lead screw, and the other end of lead screw passes through the mounting and is connected with L type yoke plate. The utility model discloses a set up lead screw, screw base, lead screw rocking handle, the lead screw passes through mounting and L type yoke plate fixed connection, through regulation lead screw rocking handle, so that the height of adjustment L type yoke plate, follow link fitting with link fitting's load and roll out, can accomplish the change to link fitting, whole device simple structure is conventional parts and is formed by connecting through certain relation of connection, has good technological effect on changing the link fitting operation. The structure is convenient for operate, and whole change gold utensil in -process, need not the power failure, does not need several operator persons to cooperate the completion, realizes taking a link fitting who changes the damage, and operation procedure simplifies, assurance transmission line service reliability.