The statistical analysis of observed sunshine duration,air temperature,precipitation and evaporation in Wuwei,Gansu Province from 1961 to 2000 indicates that air temperature kept increasing during the previous 40 years,and the temperature increase speeded up in the 1990's,which was the most obvious in winter,less in spring and autumn,and the least obvious in summer. The sunshine and precipitation had an increasing trend,and evaporation had a decreasing trend. But the increasing rates were not big. The effects of climate variation on the ecology and agriculture in the eastern Hexi corridor were analyzed and some suggestions for utilizing climate resources are given.