The utility model discloses a nest dismounting device on an electric power facility. The nest dismounting device comprises an insulating rod, a pull rod and handgrips. The main points of the nest dismounting device are that the pull rod is in a circular tube shape, the lower end of the pull rod is fixedly connected with a pull rod shaft, and the upper end of the pull rod is fixedly connected with a base; the upper end and the lower end of the insulating rod are respectively penetrate through the base and a central hole of the pull rod shaft and are arranged in a pull rod tube, the lower end of the insulating rod is provided with a handle, and the upper end of the insulating rod is provided with a supporting seat; the left end and the right end of the base are respectively provided with an arc-shaped rod, and each arc-shaped rod is provided with a positioning rod; the left end and the right end of the supporting seat are provided with bent plates, the handgrips are arranged on the bent plates, and the handgrips are provided with comb teeth; and a connecting spring is arranged between the two pieces of bent plates. The nest dismounting device on the electric power facility has the advantages that the structure is simple; the design is reasonable; and the handgrips and the comb teeth can cover a whole nest, and then the nest can be taken down, so that the time and the labor are saved, and the nest dismounting device is very convenient to use.