Unmanned aerial vehicle residual magnetism test system and method

The invention relates to the technical field of magnetic field measurement, and provides an unmanned aerial vehicle residual magnetism test system and method.The test system comprises an unmanned aerial vehicle arranged in a geomagnetic field and a daily variation monitoring mechanism; the rotating device is used for carrying the unmanned aerial vehicle and driving the unmanned aerial vehicle to rotate; the optical pump magnetometer A is used for testing the residual magnetism value of the unmanned aerial vehicle; and the data processing equipment A is in communication connection with the optical pump magnetometer A. The rotating device is arranged to carry the unmanned aerial vehicle, the motion trail of the unmanned aerial vehicle is the circumference, the optical pump magnetometer A is fixedly arranged at the circle center position of the circumference, a plurality of measuring points are selected in the rotating process of the rotating device, and through the arrangement, the influence of the geomagnetic