Abstract: In the present study, the climate change of Ewenke Autonomous Banner of Inner Mongolia in the recent 35 years was analyzed based on the meteorological data from 1981 to 2015 provided by Ewenke Autonomous Banner Meteorological Bureau. The results showed that the temperature of this region exhibited an increasing trend; the linear trend of precipitation was not obvious and fluctuated greatly. The average temperature during the growing season increased significantly; the fact that early frost period occurred later and final frost period appeared obviously earlier was the main reason causing the extension of frost-free period. The effective accumulated temperature of≥0 ℃, ≥5 ℃ and≥ 10 ℃ all showed the increasing tendency.