Using the daily data from 94 meteorological stations of Shaanxi Province from 1961 to 2018， according to the climatic background of drought disasters and the social-economic environment， combined with the theory of disaster risk， the drought disaster risk index system and model is established based on risk hazard factors， subsequently environmental vulnerability and disaster bearing bodies exposure and disaster prevention and mitigation capacity reliability. Based on the GIS platform， drought disaster risk regionalization in different seasons in Shaanxi Province is carried out. The research results show that： （1） There are obvious seasonal differences in the risk of drought disaster causing factors in various regions of Shaanxi. The drought risk in the northern of Shaanxi is higher in all seasons except summer， and the Guanzhong area is prone to summer drought. The drought risk index of Hanzhong in southern Shaanxi is higher， while the drought risk index of east Ankang and Shangluo is lower. （2） In spring， summer and autumn， the Hanzhong Plain in southern Shaanxi and the Ankang Hanjiang River Valley， Xi'an and Weinan in Guanzhong， and Yulin in northern Shaanxi are high risk areas or sub high risk areas of drought disaster environmental vulnerability. In winter， the high risk areas in most southern Shaanxi and Qinling are smaller than those in other three seasons； Qinling Mountains with higher altitude， Guanzhong Plain and northern Shaanxi are low risk or sub-low risk areas in all seasons. （3） The high risk areas of disaster bearing body exposure are mainly distributed in Guanzhong area. （4） The areas with the highest disaster prevention and mitigation capacity reliability in the province are urban areas along the Yellow River in northern Shaanxi and all over Guanzhong. （5） The high risk areas of drought disaster comprehensive risk are mainly in Bashan area in southern Shaanxi， the north and south sides of Qinling Mountains， and the south of northern Shaanxi. Hanjiang Plain in southern Shaanxi， Guanzhong Plain， Yan'an and Yulin in northern Shaanxi are low risk areas of drought.

Keywords： drought disaster risk ; assessment ; regionalization ; MCI