Based on the daily precipitation data of Dejiang National station from 1959 to 2018, Sinan and Yanhe national Station from 1987 to 2017 and 19 regional stations of Dejiang County from 2010 to 2017, the 95th percentile method was adopted to define the threshold of extreme precipitation events and statistic methods was used to analyze the occurence frequency and intensity characteristics of the extreme precipitation events of Dejiang County. The long-term variation trend of extreme precipitation event frequency and intensity was tested by MK nonparametric test method. The characteristics and relations of extreme precipitation frequency and intensity at Dejiang station in the middle and lower Wujiang River basin of nearly 60 a were studied, and then the extreme precipitation event characteristics of 19 regional stations in Dejiang county of nearly 8 a were studied.The results show that the threshold value of extreme precipitation events in Dejiang station in the middle and lower reaches of Wujiang river is 30.7 mm, the average frequency of extreme precipitation is 8.7 days, and the average intensity of extreme precipitation is 52.6 mm/d.In the past 60 a, the frequency and intensity of extreme precipitation events in Dejiang county generally showed an upward trend. The average frequency of extreme precipitation in the central, northern, northwestern and southwestern towns of 8 a Dejiang county was more days, and the average intensity of extreme precipitation in the southeastern towns in the Wujiang river flowing through section of 8 a Dejiang county was relatively strong. Extreme precipitation events with a daily precipitation of more than 100 mm mainly occurred in June and July, and the annual occurrence probability of typical extreme precipitation events was 38%.The typical extreme precipitation events in Sinan, Dejiang and Yanhe stations in the middle and lower reaches of the Wujiang river were selected as the research object. The weather systems at all levels were comprehensively analyzed, and the extreme precipitation weather model of the middle and lower reaches of the Wujiang river was summarized.