The invention discloses a busbar ground wire which comprises a U-shaped static contact, a handheld operation rod and moving contacts arranged in the middle of the U-shaped static contact, wherein an opening is formed in one side of the U-shaped static contact, a groove is formed in the bottom end of the U-shaped static contact, a swing mechanism is arranged in the groove, and the bottom surface of the moving contact and the bottom end face of the U-shaped static contact are horizontally fixed through the swing mechanism. The structure of the busbar ground wire is simple, the swinging mechanism is arranged between the moving contact and the U-shaped static contact with the opening in the side, so that the static contact and the moving contact automatically press and occlude a ground bus when the busbar ground wire is inserted, the ground bus cannot get loose, the structure is simple and reliable, the operation is simple and convenient, the grounding effect is excellent, by using the busbar ground wire, the labor intensity is greatly reduced and the working efficiency is improved; meanwhile, the disassembly is also convenient and quick, and the busbar ground wire has a higher use value.