Disclosed is an unmanned aerial vehicle system, comprising an unmanned aerial vehicle which includes a foldable first landing gear (120). The unmanned aerial vehicle system further comprises a second landing gear adapted to the unmanned aerial vehicle. When the first landing gear is folded, the second landing gear is used for supporting the unmanned aerial vehicle in a takeoff phase to enable the unmanned aerial vehicle to keep a predetermined distance from a takeoff surface, and is separated from the unmanned aerial vehicle after same took off. Further disclosed are an unmanned aerial vehicle and a control method of the unmanned aerial vehicle. When the unmanned aerial vehicle is ready to take off, the first landing gear is folded and kept in a folded state so as to prevent a load below the unmanned aerial vehicle from being blocked, and at the same time, the unmanned aerial vehicle is supported by the second landing gear; and when the unmanned aerial vehicle is landing, the self-locking of the first landing gear is released to rotate the first landing gear from the folded state to an unfolded state so as to support the unmanned aerial vehicle. Therefore, the structure of the unmanned aerial vehicle is greatly simplified and the unmanned aerial vehicle has characteristics such as low costs, light overall weight and high reliability.
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