The B02 UAV counter-system is a backpack design, which is easier to carry, convenient and rapid deployment, and can be operated by a single person. The equipment has a built-in large-capacity battery, which can last for more than 1 hour. The single channel power is large, and the operating distance is more than 1.5 kilometers. It can effectively control all low-altitude multi-rotor unmanned aerial vehicles on the market. Once the equipment is started to strike, the remote control of the unmanned aerial vehicle can fail, the captured images and videos cannot be returned, the GNSS navigation system loses signals, and the connection between the unmanned aerial vehicle and the remote controller is completely cut off, thus effectively preventing the unmanned aerial vehicle from entering the defense area and ensuring the safety of low-altitude airspace