West sandy land of Northeast China Plain lies in the eastern fringe of huge sandy belt of middle latitude in Eurasia Continent which is also the eastern fringe of desertified land with best bio climatic conditions in China.With the development of economy and the deterioration of eco environment,desertified landscape becomes increasingly obvious and is very anxious for us.Climatic factor is a fundamental factor for desertification development,the climate in west sandy land of Northeast China Plain is the best among the sandy lands in northern China.So far no systematic research work on climatic change and desertification has been carried out in this region.This paper analyzes the modern climatic features that affect desertification in west sandy land of Northeast China Plain,explores the relations between climatic variations,human activities and desertification,and predicts the possible trend of desertification under the effect of natural factors according to climate development trend in the future, providing the basis for desertification control.