The invention discloses a lifting device of an electrified automatic cleaning robot for a porcelain bottle of a transformer substation. The lifting device comprises a base plate and lifting units, wherein the two groups of lifting units are symmetrically mounted on the base plate front and back; each lifting unit comprises a mounting frame, a chain transmission mechanism and a mounting column; each mounting frame comprises a fixed rod, a first connecting rod, a second connecting rod and a hydraulic telescopic rod; each chain transmission mechanism comprises a chain wheel and a chain; an adjusting mechanism is connected between a cleaning robot body and each mounting column; and each adjusting mechanism comprises a mounting sleeve, a power mechanism for driving the mounting sleeve to rotate, a mounting plate, a second motor, a threaded rod and a movable mounting base. The lifting device is equipped with the lifting units, so that the cleaning robot body is automatically driven to lift and reciprocate; the height of a parallelogram frame is adjusted, so that the effect of adjusting the movement height of the cleaning robot body is further achieved, and the adaptability is high; and the adjusting mechanism is arranged, so that the working position of the cleaning robot body can be adjusted, and cleaning operation is facilitated.