The invention discloses a shielding joint applicable to a power cable of an ultrahigh-voltage iron tower. The shielding joint comprises a joint body, a first shielding piece, a second shielding piece, a pressure handle body, an outer shielding shell, and a handle ring, the first shielding piece is arranged at the upper part in the joint body, the second shielding piece is arranged at the lower part in the joint body, the pressure handle body is arranged in the first shielding piece, the outside of the joint body is provided with the outer shielding shell, and the outer shielding shell is provided with the handle ring. According to the shielding joint, functions of excellent insulation, sealing, and shielding are provided, and the shielding joint can be applicable to an electric power system of the ultrahigh-voltage iron tower.