The utility model discloses a high -voltage line foreign matter removing device, establish the internal gear in outside two cylinders of high -voltage line including the cover, outer flexible rack hasbeen meshed respectively to the outside of internal gear, be provided with the cleaning brush of cylinder on the internal surface of internal gear respectively, the interior tip of cleaning brush donot is provided with clean ball, outer flexible rack's both ends are connected with the pull ring respectively, the right -hand member of left internal gear is connected with the cover and establishesat the outside inner tube of high -voltage line, the left end of the internal gear on right side is connected with the cover and establishes at the outside urceolus of high -voltage line, the inner tube stretches into in the urceolus, there is fixed screw on inner tube and the urceolus respectively, the gim peg has been stretched into in the fixed screw, be provided with outside bellied fender reason on the internal gear of outer flexible rack both sides respectively, two internal gears with being connected with the bellows between the pull ring of one side respectively, be provided with thespring in the bellows respectively, the both ends of spring are connected with the pull ring with one side of two internal gears respectively, convenient operation, clear up effectually.