Intelligent driving technology imposes higher requirements on millimeter wave radar performance verification. By constructing a systematic verification system covering static calibration, dynamic scenario testing, long-range target verification, and interference and environmental factor impact analysis, combined with radar target simulator and microwave anechoic chamber technology, high-precision verification with distance accuracy of 0.06 m and speed accuracy of 0.007 km/h is achieved. Test results show that the error between the virtual platform and the real vehicle is less than 16%, validating the effectiveness of the system.