The present application discloses a bird-repelling method, a bird-repelling apparatus, and a bird-repelling system. The bird-repelling method includes steps of: controlling a light-emitting device to emit blue light; controlling a sound producing device to emit sound waves; and repelling birds by the bird-repelling apparatus integrating blue light irradiation and sound wave emission. The blue light bird-repelling mode and the sound wave bird repelling mode complement each other. Light waves and sound waves generate a resonance effect, which can repel birds more effectively without causing harm to humans or birds. The present application can be widely applied to various fields requiring bird repelling, such as aviation, high-speed railways, electric power, agriculture, and the like.
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