The key parameters of the radar system and subsystem cannot be measured with the fixed test platform of weather radar. But they can be measured manually with a portable mobile test platform. So an automatic intelligent measure system is designed in this paper. Based on the weather radar mobile test support platform, the system is composed of four parts: the software system, embedded computer system, measuring instrument functional components, and test adapter interface. Based on the architecture of standard bus and synthetic instruments, the system is designed by combining the highly integrated RF transceiver hardware platform and the open extensible software platform with secondary development capability. The automatic one-click measure and calibration of radar parameters and intelligent fault location of radar are realized through the automatic control of instrument and radar, automatic acquisition and processing of measurement data, automatic generation of measure report, intelligent fault location based on logical judgment and other technologies. The results show that the system can improve the efficiency of radar measure, calibration and fault diagnosis.