The invention provides a portable movable ground wire, and relates to the technical field of safety equipment of power systems. The portable movable ground wire comprises a U-shaped wire clamp body, a short-circuit wire, an insulating rod and a mechanism, wherein the short-circuit wire is fixed at one side of the U-shaped wire clamp body; the U-shaped wire clamp body is connected with the insulating rod; and the mechanism is used for assisting the U-shaped wire clamp body in rotation. The portable movable ground wire can solve the problem that the ground wire cannot be in good contact with fixed contacts due to the fact that the fixed contacts of an intermediate switch cabinet are different in model and orientation, and can avoid an accident caused by an accidental drop of the ground wire.