Abstract: By employing NCEP reanalysis data、daily observation data, the autumn continuous rain accompanied by regional rainstorm in Chongqing since 2000 had been diagnosed. The results showed that, the autumn continuous rain accompanied by regional rainstorm in Chongqing occurred mainlu in September, and the western region of Chongqing was a multiple occurrence area. There are two types of Regional Rainstorm in the continuous rain, he influence systems are shear line-Southwest China vortex and typhoon inverted trough.The 24h variable temperature, vorticity, potential pseudo-equivalent temperature, whole layer of water vapor flux and specific humidity had good indication to forecast.