The utility model discloses an electric power tower. The tower comprises a tower body, wherein a cross arm is arranged on the tower body; the cross arm comprises a supporting frame fixedly connected with the tower body. Supporting plates arranged in the length direction of the supporting frame are arranged on the two sides of the supporting frame. A lightning arrester is suspended at the outer endof the support frame through a hardware fitting; the lightning arrester comprises an epoxy core rod, a rubber sheath is sleeved outside the epoxy core rod, an insulating cylinder is sleeved outside the rubber sheath, a sheath umbrella skirt is arranged on the outer wall of the insulating cylinder, an upper electrode and a lower electrode are arranged in the insulating cylinder, and a certain distance is reserved between the lower electrode and the upper electrode so as to keep a certain discharge gap. A valve plate assembly is connected between the hardware fitting and the upper electrode inthe insulating cylinder, the valve plate assembly is formed by connecting a plurality of annular valve plates in series, the rubber sheath is sleeved with all the annular valve plates, and gaps amongthe annular valve plates, the epoxy core rod and the insulating cylinder are filled with sealing materials; according to the utility model, tower line facilities and installation work are simplified,and the safety of operators is improved.