The invention discloses an ultrahigh voltage equalizing hood. The ultrahigh voltage equalizing hood comprises a framework, a center rod and aluminum foil, wherein the framework comprises a ring-shapedupper end cover, and a ring-shaped lower end cover arranged at the bottom corresponding to the ring-shaped upper end cover, the ring-shaped upper end cover and the ring-shaped lower end cover are fixed through a plurality of support bones arranged at side, the upper end cover and the lower end cover are separately provided with two connection rods, the connection rods intersect so as to form a connection part, the connection part is arranged at centers of the upper end cover and the lower end cover, two ends of the center rod cooperate with the connection part of the upper and lower end covers, and the aluminum foil is on the surface of the framework. The ultrahigh voltage equalizing hood has light weight, is convenient to transport due to the lantern-shaped structure, is not spliced in the site and can be used by opening only.