Abstract: As a typical humid-semi humid area,the temporal and spatial distribution characteristics of drought disasters in the Yangtze River basin are complicated.In order to analyze the risk distribution characteristics of drought disasters in the Yangtze River basin,based on the multi-source statistical data of drought disasters from 1990 to 2020,the method of drought disaster risk assessment was used to analyze agricultural drought,drinking water difficulty and comprehensive risks.The results show that the spatial distribution of agricultural drought disaster risk in different regions of the Yangtze River basin is quite different,and the risk level of some districts and counties in Sichuan,Hunan,Hubei,Jiangxi and Yunnan provinces is on the high side;High/medium high risk areas of drinking water difficulty due to drought are mainly concentrated in Guizhou,Hubei,Hunan,Sichuan provinces and Chongqing City,and mainly distributed in mountainous areas with weak water facilities;The spatial distribution of drought disaster comprehensive risk shows that the general risk level of traditional arid areas such as Sichuan basin,central Yunnan plateau,central Guizhou,Heng Shao Drought corridor,Jitai basin,northern Hubei hillock,central Hubei hilly area,and southern Hunan is high,which is consistent with the severe drought area of the Yangtze River basin in 2022.