The raw data management and case reorganization system for new generation weather radar is developed to meet the requirement of current shortterm forecasting and nowcasting, as well as other scientific research services. The VC++ 60 programming language and MSSQL Server 2008 database development technology are used to set up the corresponding database for different historical case data in this system. This system uses the method of direct warehousing after compression for raw data files. The realtime and high efficient query and downloading of CINRAD data are realized for the provinciallevel, municipal, and countylevel weather forecasters and researchers, meteorological service, and weather modification projects. The system has the realtime query function of different retrieval conditions, case materials, and real and history raw data downloading. It is convenient for all level weather forecasters in shortterm weather forecasting and nowcasting, as well as the other researchers and technical personnel for providing detailed and fullscale observation data. This system performed well since put into operation one year ago, and has great application potentials.