The invention relates to a lightning conductor, comprising a conductor core (40), a clamping seat (80) for clamping and fixing the conductor core (40) and a lightning indicator, wherein the lightning indicator comprises a cover layer (20) which is jointed and fixed with the clamping seat (80), an indication layer (10), a lightning pin (30) and an elastic element (50); the surface of the indication layer (10) is provided with markers which are covered by the cover layer (20); the lightning pin (30) is connected with the indication layer (10) and the conductor core (40); one end of the elastic element (50) is fixedly connected with the conductor core (40) and the other end of the elastic element (50) is connected with the indication layer (10); the elastic element (50) is in a bent state; and the lightning pin (30) is disconnected with the indication layer (10) and the conductor core (40) after being subjected to lightning stroke, thus the elastic element (50) drives the indication layer (10) to move under the action of reset force so as to display the markers outside the cover layer (20). The lightning conductor is simple in structure, obvious in display effect and low in cost, andcan display the lightning stroke without complicated electric or communication components.