The days and intensity of extreme heat, drought, and compound events were calculated based on the extreme heat threshold and standardized precipitation evapotranspiration index (SPEI) using the daily meteorological data from 40 meteorological stations in the mountain area of the eastern Sichuan Basin，the mountain area of the eastern Sichuan Basin and the southwest Sichuan mountain from 1961 to 2022. The changing trends and spatial distribution characteristics of extreme heat, drought and compound events were analyzed and the comprehensive risk indexes were determined. The results showed that:（1）The long-term changes of the three types of events in the three areas showed increasing trends, and which was the most obvious in the southwest Sichuan mountain area. （2）According to the comprehensive risk index, there were many years with concurrent high temperature events in the whole study area. The years of concurrent drought in the whole study area were few. Since the 21st century, the years in which the compound events from June to October affected the whole study area have been more, with the highest comprehensive risk index in 2006 and 2022. The high-risk indexes of the sites were mainly distributed in the mountain area of the eastern Sichuan basin, which was a key area for the defense of extreme high-temperature and drought compound events. (3) The abnormal distribution of the three types of events in 2022 was regional consistency. The occurrence days and intensity of the three types of events were significantly more than the average of many years. The compound events occurred in stages, mainly in July and August. The mountain area of east Sichuan Basin was the superposition center of the three types of events in 2022, which was most affected by the compound events.