Abstract: Taking Houtian as an exampl,the featares of eolian sand landforms in subtropical zone of China are discussed in ditail in addition to the process of land form development. Through analysis to the factors that affect the development of land form,a model was set out. The reason why the wind-sand impacted land can be existed here is due to strong wind and dry climate in winter, which cause sand drift on sandy ground and form various brush dunes. Since sand source is not abundant, the scale of land-form here can not develop as large as in the desertified areas of Northern China, According to the field investigation, the land form scale has nearly reached summit, most probably it would decline in the future.