Airports are generally built in suburbs far away from the city, with a perimeter range of dozens of kilometers, and the surrounding environment is complex and difficult to prevent, and some perimeters even cross rivers, mountains, and highways. How to achieve effective intelligent monitoring of the airport perimeter is an important part of airport security prevention. The integration of radar and vision system, combined with the active detection, high sensitivity and video visibility of radar technology, when an unknown object approaches or crosses the perimeter, the system will issue an alarm in real time and locate and track the target.