Abstract: Maowusu sandy land is one of serious desertified regions in the North China. The desertification process and its controlling countermeasures in this region are expounded. Based on the analysis it is shown that the human irrational land use is the main factor of desertification. The processes of desertification,which is indicated by accelerated wind erosion,mainly have being controlled by the interaction of human activities and fragile ecoenvironment.At last,some principles and concrete measures for controlling desertification in Maowusu sandy land are put forward.