The invention discloses a power transformation maintenance frame, and relates to the technical field of power maintenance tools. The frame comprises a frame body which consists of four parallel supporting legs, and also comprises a supporting plate and universal wheels disposed at the lower parts of the supporting legs. The supporting plate is disposed on the frame body, and comprises an upper plate and a lower plate. The bottom of the lower plate is fixed with the supporting legs, and the lower plate is shaped like a groove. Two sides of the upper part of the lower plate are respectively provided with a chute, and the upper plate slides in the chutes of the lower plate. The frame is simple in structure, is convenient to use, can load equipment in different sizes, improves the work efficiency, and saves the manpower.