The third-generation intelligent bird-repelling device provides four different structural installation methods to meet the installation needs of different scenarios. It utilizes advanced sensor technology and intelligent hardware technology, and adopts an active detection and triggered start method to effectively solve the long-standing bird pest problem that has plagued operation and maintenance personnel. It has three bird repelling methods: biomimetic sound bird repelling, flashing light source bird repelling, and ultrasonic bird repelling, and has suddenness and initiative, reducing the adaptability of birds to equipment. Compared with traditional bird repelling devices, it is more intelligent and long-lasting.