Based on MODIS NDVI and climate datasets during 2000-2014,used linear regression and correlation analysis,the spatiotemporal variations of NDVI in Gansu and their linkage with regional climate change were analyzed.The results showed that in the last 15 years,average NDVI of growing season, spring,summer and autumn all showed an increasing trend.The trend of summer was the most significant at regional scale,with a rate of 0.071/10 a(P<0.01).At pixel scale,the area of increasing trend in growing season was the largest,area with excellent (P<0.01)and significant(0.01