Abstract: Based on the MCI index of 16 meteorological stations in HulunBuir city from 1971 to 2014 and the theory of natural disaster risk zoning,a model for the establishment of drought disaster risk zoning was established.Based on the GIS technology and remote sensing technology,the risk zoning map at the spatial resolution of 1km×1km was drawn.The risk zoning map showed that HulunBuir grassland drought disaster risk was generally high,the lack of infrastructure and drought resistance,agricultural production in Arong county and Zhalantun city had high drought risk values,but it was relatively low in Yakeshi city and Genhe city which had many mountains and forests.It was suggested that we should strengthen drought-prevention and drought-resistance facilities in drought-prone areas and rationally arrange and standardize agricultural and animal husbandry production activities.

Key words: MCI index;Risk zoning of drought disaster;HulunBuir city