The new generation weather Doppler radar is a complex construction system. The radar breaks down because of its continuous running and strict environment requirements. The various failures of the radar system are summarized and classified. Based on the failure cause classification, the failures are sorted into 5 categories: (1) hardware malfunction; (2) software collapse; (3) the failures induced by natural disaster; (4) false alarm; and (5) false radar image. A radar failure analysis and standardization platform is developed, aiming at the rapid repairing of the radar failures. The operation capacity of the new generation weather Doppler radar from June 2007 to May 2010 is calculated. Two kinds of radar failures are discussed and the distribution of the radar subsystem failures is given.