Abstract: In this paper,the different variation of the drought/flood disasters in north Xinjiang and south Xinjiang was analyzed based on the daily temperature and precipitation data from 49 meteorological stations in Xinjiang during the period from 1960 to 2014 so as to provide the basis for disaster prevention,and the drought and flood grades at every station were confirmed by the improved CI.Results are as follows: ① The difference of drought intensity between north Xinjiang and south Xinjiang was not significant,and the drought in south Xinjiang was slightly more serious than that in north Xinjiang; ② The difference of flood intensity between north Xinjiang and south Xinjiang was significant,and the flood in north Xinjiang was more serious than that in south Xinjiang; ③ Holistically,a trend from high occurrence frequency of drought to high occurrence frequency of flood occurred in Xinjiang; ④ Seasonally,winter flood disasters were the most serious in both north Xinjiang and south Xinjiang,and the winter drought in south Xinjiang and the summer drought in north Xinjiang were the most serious.As a whole,the difference of drought/flood disasters between south Xinjiang and north Xinjiang reflected mainly by the serious degree of rainfall-caused flood,and the flood in north Xinjiang was more serious than that in south Xinjiang.

Key words: drought/flood disaster, CI, duration, intensity, Xinjiang