The invention discloses a wind-driven bird repelling device, and relates to the technical field of wind power driving. The wind-driven bird repelling device comprises a hexagonal base, wherein a positioning column is movably connected to the middle position of the top of the hexagonal base, a reinforcing seat plate is fixedly connected to the position, corresponding to the hexagonal base, of the outer surface of the positioning column, and a sound wave mechanism is fixedly connected to the end, away from the hexagonal base, of the positioning column; the outer surface of the end, away from the positioning column, of the sound wave mechanism is movably connected with a rotating ring, the outer surface of the rotating ring is movably connected with a wind-driven spherical cover, the bottom of the rotating ring is movably connected with the sound wave mechanism, the bottom of the outer surface of the wind-driven spherical cover is movably connected with the sound wave mechanism, and the bottom of the sound wave mechanism is movably connected with the reinforcing seat plate. The wind-driven bird repelling device is triggered through magnetic force, intermittent self-control is facilitated, adaptability of birds to sound waves is reduced, the dispersing effect of the birds is improved, meanwhile, the surface of the device is smooth, point effect cannot be generated, and self-protection capacity is enhanced.