The invention provides a vehicle reversing radar testing rack which can simulate probe installing positions of a real car to ensure an effective verification of detection range and detection distance of radar probes during the stage of design before assembly, so that a vehicle reversing radar system can satisfy design requirements and meet business standards, and testing and development period can be shortened. The reversing radar compromises a base whereon a sliding groove is arranged, a plurality of telescopic vertical probe supports are installed on the sliding groove in a manner of sliding, and movable probe clips are installed on top of the probe supports. During the development, the radar probes can be installed on the probe clips, and the distance between each two probe supports can be adjusted by sliding. Then, by changing positions and angles of the probe clips, the installation positions and angles of the radar probes in a real car are simulated, and the detection range and the detection distance of the radar probes can be effectively verified.