The RF scan 3D security radar adopts 3D scanning technology, aiming at the three-coordinate three-dimensional space surveillance of low-altitude, ground targets, all-round and high-elevation coverage, and is mainly responsible for the real-time reconnaissance of aircraft, ground personnel, vehicles and other targets in the surrounding area, finds and tracks the target, and output or report the target information to the specified user. The radar supports three erection modes: fixed, vehicle-mounted and portable, and is flexibly suitable for various low-altitude and ground security application scenarios.