Abstract: Vegetation NDVI series from 2000 to 2016 in the Greater Khingan Range was reconstructed using the S-G filter method.The variations of vegetation NDVI during the growing season and their responses to climate were analyzed considering the factors of elevation,slope orientation,slope angle,temperature,and precipitation.The results show that the average of vegetation NDVI during growing season increased by 0.029 per decade.The vegetation NDVI decreased slowly first,then increased rapidly with the increase of elevation.The vegetation NDVI showed an increasing trend with the increase of the slope.The variation of vegetation NDVI showed no obvious regularity with the change of slope orientation.The averaged of vegetation NDVI during growing season showed a significant positive correlation with precipitation of one year and two years ago,indicating that NDVI had obvious hysteresis compared to precipitation.There was a significant positive correlation between the vegetation NDVI at different elevations with the air temperature in the early days of vegetation restoration.There is a significant difference for correlation between vegetation NDVI and precipitation within a year in the vertical direction.