Backsight radar calibration aiming device

The utility model relates to a backsight radar calibration aiming device which comprises a lens cone, a rotary reflector, a fixed reflector, an objective lens, a division lens assembly and an eye lens assembly. The rotary reflector and the fixed reflector are symmetrically arranged and form 45-degree angles in the horizontal direction, the division lens assembly is provided with an LED light source, and an opening direction of the eye lens assembly is identical to an opening direction of an observation window. The backsight radar calibration aiming device has the advantages that a backsight aiming effect can be realized when directions are calibrated, and heavy radar antennas do not need to rotate at large angles; the rotary reflector has a manual rotation adjusting function, so that direction objects at low pitching angles can be calibrated, a function of large observation view can be realized, division illumination can be adjusted by the backsight radar calibration aiming device, a clear illumination effect