Portable microwave nondestructive testing system and method capable of carrying unmanned aerial vehicle

The invention relates to the technical field of defect testing devices, in particular to a portable microwave nondestructive testing system and method capable of carrying an unmanned aerial vehicle. The method comprises the steps that S1, a microwave source module, a detection module and a signal analysis module are carried on an unmanned aerial vehicle, the microwave source module generates microwave oscillation based on a solid-state microwave source of the Gunn oscillation principle, the detection module detects insulators of a specified batch in advance under laboratory conditions, and the defect-free reading fluctuation range of the insulators is obtained; s2, the signal analysis module sets a peak which is obviously out of the range as the internal defect of the insulator according to the non-defect reading fluctuation range; s3, the unmanned aerial vehicle is hung on the network to run to the insulators, the microwave source module scans the insulators in the same batch as the laboratory conditions, th