PROBLEM TO BE SOLVED: To provide a method for efficiently measuring wind direction and speed using an unmanned aerial vehicle. A wind direction and wind speed measuring method for measuring a wind direction and/or a wind speed using an unmanned aerial vehicle, comprising: a control means for controlling a flight function; and a position information acquisition means for acquiring position information. After raising to a desired altitude, the control means horizontally moves the unmanned aerial vehicle from the measurement start point to the measurement end point by natural wind while maintaining the attitude and altitude of the unmanned aerial vehicle during the movement. A wind direction and wind speed measuring method and system for measuring wind direction and/or wind speed by analyzing position information of an unmanned aerial vehicle acquired by the position information acquiring means. [Selection diagram] Figure 1
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