The invention relates to the technical field of a wind machine, in particular to a wind machine deflector. The wind machine deflector comprises a deflector, wherein a controller, a dynamic pressure manometer, a static pressure manometer, a wind wheel azimuth instrument and a thermometer are arranged in the deflector. The controller is connected with a power supply and outputs signals. The dynamicpressure manometer, the static pressure manometer, the wind wheel azimuth instrument and the thermometer are correspondingly connected with the controller. The front end of the deflector protrudes andmultiple holes are formed in the surface of the protruding part, wherein wind meter connectors are installed in the holes. The wind meter connectors are connected with the dynamic pressure manometerthrough a pipe, and the wind meter connectors, the pipe and the dynamic pressure manometer form an anemometer array. The wind machine deflector can accurately measure wind speed and direction; throughdata analysis of multiple sensors, the prediction of the freezing situation can be achieved; the controller is arranged in the wind machine deflector, and thus uniform power supply and data output can be achieved.