The invention relates to a transmission conductor wind noise observation method and a transmission conductor wind noise observation system. The method comprises the following steps: two microphones receive acoustic signals generated by a transmission conductor in a strong wind, and a sound level meter and a waveform data recording device record the acoustic signals; an octave filter or a spectrometer analyzes the acoustic signals to get the phase difference between the two signals, and calculates out the direction angle of a wind noise source relative to the microphones; and the location of the wind noise source is presumed according to the space coordinates of the microphones and the known height of the transmission conductor. The system comprises an anemometer which is used for simultaneously recording the wind speed under wind noise of different frequencies generated and the wind direction relative to the transmission conductor. The spatial position of the wind noise source of an ultrahigh-voltage transmission conductor can be located. Multiple sensor groups constitute a large experimental study observation system for long-term observation of the wind noise of transmission conductors. The characteristics of wind noise of different types of split conductors and conductors under different wind speeds and wind directions can be studied. The influence of wind noise on the surrounding environment can be eliminated.