Using the characteristics of tethered UAVs or medium and large UAVs staying in the air for a long time, by carrying corresponding loads, an air interference support environment is constructed, which provides a realistic simulation of a complex electromagnetic environment close to the actual combat for the experimental training tasks, and provides a realistic simulation of the complex electromagnetic environment in the experimental training area. Large-scale uninterrupted monitoring of the electromagnetic environment and terminal area, real-time collection and storage of various electromagnetic signals in the environment, realization of target placement, real-time video transmission and playback, and support for the design, optimization and performance evaluation of experimental training tasks.