The utility model discloses a high -voltage line suspension clamp, the upper portion intermediate position department of splint is provided with the pivot, the left part and the right part of splint are provided with respectively, the groove frame of two lower rectangle frames, be provided with the slider in the frame of groove respectively, the slider is connected with the both ends of gear shaftrespectively, the outer terminal surface of slider contacts with the terminal surface of gim peg respectively, the gim peg passes the keyhole on the frame lateral wall of groove respectively, keyholeon every groove frame lateral wall is two at least, the gear shaft passes the shaft hole of gear central shaft department respectively, the gear respectively with the toothed bar mesh of the higher authority, the inner of rack is connected with half circle ring's half clasping loop respectively, the high -voltage line has been passed between two and half clasping loop, be connected with branch onthe lower lateral wall of rack respectively, the lower extreme of branch stretches into in the spout respectively, the spout sets up respectively on the upper surface of coulisse, the lower part at splint is connected respectively to the coulisse, be provided with the handle on the gear respectively, be provided with the fixed orifices on the splint, convenient operation, the centre gripping is effectual.