The invention relates to the field of electric power circuit maintenance, in particular to a wind power bird repelling device. The wind power bird repelling device is characterized in that the wind power bird repelling device comprises a horizontal axis wind turbine, a connecting base and an ultrasonic wave controller. The horizontal axis wind turbine comprises a machine head, a rotating body, an empennage and blades, wherein the rotating body is downward connected with the connecting base, the machine head and the empennage are coated with red coatings, the blades are coated with mirror light reflection coatings, an asynchronous generator is arranged in the machine head, an output wire of the asynchronous generator is connected with the ultrasonic wave controller. An ultrasonic wave generator and an energy exchanger are arranged in the ultrasonic wave controller, and an embedded microcomputer is sequentially connected with the ultrasonic wave generator and the energy exchanger. Compared with the prior art, the wind power bird repelling device has the advantages that multiple types of bird repelling schemes including the red warning scheme, the light reflection scheme and the ultrasonic wave noise scheme are integrated, resistance of the horizontal axis wind turbine is small, the horizontal axis wind turbine can be started through breeze, the embedded microcomputer enables the energy exchanger to give out noise in a continuous or intermittent mode according to the program, and therefore the effects of alarming birds and enhancing long-time bird repelling can be achieved.