An unmanned moving vehicle piloting method and an unmanned moving vehicle watching device enabling it to pilot an unmanned moving vehicle, while keeping in visual contact with the vehicle from the vicinity of the vehicle from a third person viewpoint. In the vicinity of an unmanned moving vehicle, a watching aircraft is positioned, which is an unmanned aerial vehicle and includes a single or a plurality of rotors and image capturing means capable of capturing an image of surroundings of the watching aircraft and is able to stand still at one point in the air and piloting the unmanned moving vehicle, while viewing a third person viewpoint image captured by the watching aircraft. Moreover, the watching aircraft includes accompanying flight means for causing the watching aircraft to fly automatically, following movement of an unmanned moving vehicle. This enables the manipulator to concentrate solely on piloting the unmanned moving vehicle.