Miniature propeller unmanned aerial vehicle capable of being unfolded automatically

The invention discloses a self-unfolding miniature propeller unmanned aerial vehicle which comprises a flight power system, an unmanned aerial vehicle body, a landing system, a folding and unfolding device, a control circuit and a battery. The flight power system comprises propellers and motors, the unmanned aerial vehicle body comprises a fuselage and a vertical fin, the landing system comprises a supporting frame and wheels, and the folding and unfolding device comprises a locking device, an unfolding device and a limiting device. When the unmanned aerial vehicle is not used, propellers in the flight power system, a vertical fin in the unmanned aerial vehicle body and a supporting frame in the landing system are all in a folded state; during use, the vertical fin and the supporting frame are automatically unfolded and fixed in a vertical state through the folding and unfolding device; and the propellers are automatically unfolded under the action of centrifugal force generated by rotation of the motor, and