The utility model relates to a change special high voltage transmission lines dead end insulator integrated equipment, it includes: centre gripping transmission line goes up the splint of insulator, rotatable coupling in external mechanization construct or the connector of splint, and the pneumatic cylinder, having circular cylinder body and be equipped with pole chamber and no pole chamber in, no pole intracavity sets up reset spring, be fixed with pump and switching -over valve in the cylinder body periphery, the input shaft of pump stretches out the pump body, stretches out the end and sets up the connecting portion of establishhing swing joint with the outside to it is rotatory to supply hand tool or electric tool input power drive input shaft, wherein, a connector is connected to the cylinder body of pneumatic cylinder, and a connector is connected to the piston rod. With splint card back on waiting to change the two insulator steel caps in insulator front and back, start the hydraulic pressure jar, can tighten up the closed card, for the manual closed card that tightens up, this technical scheme is laborsaving, has reduced intensity of labour by a wide margin, especially can provide bigger pulling force. To the start -up of pump, can adopt hand tool or electric tool, easy operation is convenient.