In order to solve these problems of a certain type of radar controller, such as long continuous working time, heavy maintenance tasks, backward test means, complex operation methods and numerous procedures, a test system for a certain type of radar controller based on versa module eurocard (VME) bus is designed. The hardware part is based on four kinds of boards such as VME bus integrated master computer board to realize signal simulation, data acquisition, information exchange and other functions. The software part completes automatic test, data management, fault analysis and other test functions. The practical application results show that the test system can quickly, accurately and stably detect, debug and diagnose the faults of each batch of radar controllers of a certain type of equipment, with wide detection coverage and simple operation, which shortens the time of fault detection and equipment maintenance and effectively improves the emergency repair capability.