The invention discloses a high-voltage wire jumper wire wind-deflection-prevention suspension heavy hammer device, and solves the technical problems that in the prior art, the suspension heavy hammeris inconvenient to install, poor in stability and serious in potential safety hazards. The device comprises a heavy hammer piece and a wire clamp connecting unit connected with the heavy hammer pieceand a pole tower; the heavy hammer piece is connected with the wire clamp connecting unit through a ball head and a bowl head which are matched with each other; the heavy hammer piece comprises a center rod and a heavy hammer piece assembly detachably connected to the periphery of the center rod; each heavy hammer piece comprises at least one heavy hammer piece assembly; and the heavy hammer pieceassembly is connected with a detachable pulley assembly. According to the device, transportation, installation and maintenance are facilitated, and point discharge can also be avoided; in addition, the wind resistance is small, and the effect of reliably stabilizing the wire jumper wire is achieved. The device further has the wind deflection prevention effect on the suspension stable wire and thejumper wire, so that the space safety distance between the conductor of an electrified wire and a pole tower, a stay wire and an adjacent object is guaranteed.