Abstract:To objectively evaluate the effect of artificial rainfall enhancement in Wudi County, using precipitation data from 1964 to 2023 at Binzhou and Wudi national basic meteorological stations and regional stations from April to July, three statistical testing methods, namely sequence analysis, regional comparative analysis, and regional regression analysis, were used to analyze and study the effect of artificial rainfall enhancement from 2014 to 2023. The results showed that the average absolute ten-day rainfall increase obtained by sequence analysis and regional regression analysis were 7.24mm and 7.89mm, respectively. The sequence analysis passed the significance level of 0.05 in April, May and July. The regional regression analysis passed the significance level of 0.05 in April and July. The regional comparative analysis shows that the daily average absolute rainfall increase is 3.75mm and the average daily relative rainfall increase rate is 21.93%. It passed the significance level of 0.05 in April, June and July, and the significance level of 0.1 in May.