The utility model provides a novel ventilation protection window, its characterized in that: including a plurality of frames, be equipped with a plurality of louvers in the frame, still include guard net and layering, the layering is fixed the guard net on the frame. Since the technical scheme is used, the utility model discloses simple to use, the installation of being convenient for, construction process has obtained the improvement, improves distribution transformer safety and stability nature. Electric power customer power consumption stability is guaranteed in the emergence of avoiding foreign matters such as toy, vine cane plant to arouse pernicious power failure such as tripping operation, and the social economic effect is outstanding.