The utility model discloses a wire is insulating pullover for on - -spot electric energy meter of changing belongs to the insulating pullover technical field of wire who changes the electric energy meter in the scene, the technical problem that will solve does: the utility model provides a simple structure, adjustable to the lead wire gripper dynamics, use and management party on -the -spot changeelectric energy meter wire just is insulating pullover, the problem of this technique is solved the technical scheme who adopts does: including one end opening one end confined insulation support, insulation support's lateral wall middle part is provided with locking device, insulation support's the intraductal holding piece that is provided with, locking device and holding piece fixed connection, insulation support's open end is provided with the elastic rubber hole, insulation support's blind end passes through the connecting rod and links to each other with pullover base, pullover base setting is in smooth movable rail says, locking device's quantity is two at least, the quantity of holding piece is two at least, the utility model discloses be applied to the place of changing the electric energy meter.