The faults of CINRAD/SA radar occurred in one year of operation in Shijiazhuang are analyzed statisticaUy, and the common warning massages and faults, as well as the countermeasures, are introduced. It is pointed out that the running status of CINRAD/SA has close relation with the communication network, computers, and environment temperature of radar. The local environment has obvious influence on the working conditions of radar. Faults are found more frequently in the transmitter, antenna, and control system, which are key parts of routine maintenance. In order to ensure the normal running of radar, it is important to have a safe network management system, high-performance computers, good maintenance, and optimum environment.