With regard to the distributions of bird pest in different regions, all kinds of bird repellers are installed in the building peaks, airport surroundings, tower electric poles, power substations and distribution power lines, so as to prevent from bird approaching. In this way, for the power systems, firstly, it can prevent birds from approaching to line insulators, and avoid the pollution of bird feces; secondly, it can guide the bird flying directions, thus they will not inhabit on their customary destinations, and prevent from their incubations; thirdly, it can prevent the birds from injuries.