The invention belongs to the technical field of high voltage tests in the electric power industry, and particularly relates to a lifting pedestal for testing the electrical insulation performance of acomposite silicon rubber metal oxide lightning arrester. The invention provides a lifting pedestal with high test efficiency for testing the electrical insulation performance of the composite siliconrubber metal oxide lightning arrester. The lifting pedestal comprises an insulating outer cylinder and an insulating inner cylinder, and is structurally characterized in that the insulating inner cylinder is arranged in the insulating outer cylinder, the lower end of the insulating outer cylinder is fixed on a metal pedestal supporting plate, a hydraulic pump is arranged at the middle of the metal pedestal supporting plate inside the insulating outer cylinder, the upper end of the hydraulic pump is connected with a hydraulic cylinder, an outlet of the hydraulic pump is connected with a hydraulic oil inlet of the hydraulic cylinder, the upper end of a telescopic rod of the hydraulic cylinder is connected with the middle part of a transverse connecting arm, two ends of the transverse connecting arm are connected with the vertical middle part of the inner wall of the insulating inner cylinder, and the upper end of the insulating inner cylinder is fixedly provided with a transverse composite silicon rubber metal oxide lightning arrester fixing base plate.