The invention discloses a folding type lifting device for electrical equipment. The folding type lifting device comprises a base and a lifting platform arranged above the base. Four supports are arranged on the base, lower supporting rods are arranged on the supports respectively, and the lower supporting rods are rotationally connected to the supports. A hydraulic cylinder is arranged on the base, the lower end of the hydraulic cylinder is rotationally connected to the upper end face of the base, the upper end of the hydraulic cylinder is hinged to the side walls of the lower supporting rods, the cross sections of the lower supporting rods are each in a U shape, the ends, away from the supports, of the lower supporting rods are provided with upper supporting rods, rotary shafts are arranged on the lower supporting rods, the rotary shafts are sleeved with the upper supporting rods, chain wheels are arranged on the rotary shafts, and motors for driving the chain wheels to rotate are arranged on the inner sides of the upper supporting rods. The equipment can be conveniently and longitudinally conveyed through the lifting platform.