Abstract: Based on the daily precipitation data of 101 weather stations in Sichuan Basin from 1961 to 2016 integrated meteorological drought index (CI) , and using climate tendency rate, empirical orthogonal function (EOF) and wavelet decomposition method analysis of climatic statistical diagnosis methods, the spatial and temporal variations of intensity of spring drought and the spring drought days are analyzed. The results show that the spatial distribution of the intensity of spring drought in southwest of Sichuan Basin is higher than that in other areas, and the days of spring drought in central part of Sichuan Basin are more, especially in the north of Neijiang. In recent 56 years, there was a significant negative correlation between the number of days of spring drought and the long-term variation trend of the intensity of spring drought. The number of days of spring drought generally decreased, while the intensity of spring drought generally increased. Regardless of the intensity of spring drought or the number of days of spring drought, the first characteristic vector of spring drought presented the same positive and negative changes in the whole Sichuan Basin, which was the most important spatial mode, and the corresponding variance contribution rate were 42.99% and 44.24%, respectively. The intensity and the number of days of spring drought have periodic changes of 1~4 years, 5~12 years and 14~28 years.