Modern radars face the problems of dense technology， complex structure， difficult performance and quality evaluation， and lack of quantitative evaluation methods. Considering this， a radar condition monitoring and comprehensive performance evaluation system is designed by technologies such as intelligent monitoring and automatic testing， as well as fuzzy comprehensive evaluation. In this way， the comprehensive evaluation of the quality condition is achieved for the radar system， which is mainly on monitoring data and fused with historical data and environmental data. Upon the introduction to the overall structure of the system， the design principles of the condition monitoring system and the comprehensive evaluation system are expounded in detail， and the application of the systems in a typical radar is given. It has been verified that the system design is reasonable and feasible and can comprehensively and excellently evaluate the performance of the radar system.