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To solve the problem of errors in aircraft docking caused by excessive line of sight inclination and line of sight deviation, and to achieve precise docking of aircraft rendezvous trajectories, a radar ranging based aircraft rendezvous and docking error compensation control technology is proposed. Establish a spatial reference coordinate system, derive the dynamic state equation based on the calculation results of orbital elements, and analyze the dynamic effects of spacecraft rendezvous and docking process. According to the principle of radar ranging, calculate the theoretical flight duration of the aircraft and the operating distance of the radar device, and then combine relevant parameter indicators to determine the range of accuracy limits, achieving docking error control based on radar ranging. In the structural model of a coordinate measuring machine, the flight pose fitting conditions are defined, and based on the pose error solution results, compensation and correction of error parameters are achieved. The design of a radar ranging based aircraft rendezvous and docking error compensation control method is completed. The comparative experimental results show that the proposed method can simultaneously control the values of line of sight inclination and line of sight deviation within the numerical range of 0 ° -45.0 °, which can effectively solve the problem of incorrect docking of aircraft and meet the practical application requirements of precise docking of aircraft rendezvous trajectories.