based on the third generation GIMMS NDVI time-series datasets and meteorological datasets during 1982~2012,the change characteristic of NDVI and its response to climate change in Inner Mongolia in recent 30years were analyzed by means of maximum value composite,trend analysis and correlation analysis. The results show that the overall trend of NDVI spatial and temporal distribution in Inner Mongolia shows an increasing tendency,and the change trend of NDVI shows a decreasing tendency only in areas which are the southwest of Hulun Buir,the northwest of XilinguoleMeng and the central of Ulanhot.Inner Mongolia responses significantly to global climate change.The change of average annual temperature and precipitation shows an increasing tendency,and the change rate of them are 0.2℃/10a,-10.7mm/10a,respectively. The correlation coefficients between NDVI and air temperature and precipitation shows spatial difference,and 17.6%areas are significantly related to precipitation,and only 0.4%of the areas are significantly related to air temperature.In addition,precipitation has more significantly effect on NDVI compared with air temperature.