The invention relates to the technical field of electrical equipment. A mirror surface scattering light source type bird repelling device comprises a base, a rotary shaft and a wind cup, wherein the base comprises a U-shaped clamp slot, the rotary shaft is connected with the side wall of the U-shaped clamp slot, the wind cup is connected with the rotary shaft by a support rod, and comprises a reflective mirror and a cover body, the front part of the cover body is shaped like a bowl opening, the rear part of the cover body is conical, the reflective mirror is movably connected with the front part of the cover body, and the area of the acting surface of the reflective mirror is less than that of the front part of the cover body. The bird repelling device is simple in overall structure and reasonable in design; under the combined action of the base, the rotary shaft and the wind cup, the bird repelling effect can be effectively improved, bird troubles are reduced, meanwhile, the power supply reliability is indirectly improved, and popularization and application are facilitated.