The invention discloses a method for utilizing mine coal gangues to control and fix sands. In the method, the coal gangues are placed in a grid shape to form a coal gangue windbreak, and shrubs are planted in grids. The placing density of the coal gangues is in direct proportion to the local wind power, and the placing density of the coal gangues in a prevailing wind direction is larger than the placing density vertical to the prevailing wind direction. An area of each grid is 2-5 square meters. The height of the shrubs is lower than the height of the coal gangue windbreak. By utilizing the mine solid waste coal gangues as materials, the method has the effects of, firstly, efficiently utilizing the mine solid waste coal gangues and solving the problems of large occupied land area of the coal gangues as well as spontaneous combustion and leaching pollution caused by the coal gangues; and secondly, solving the problems of low efficiency and easy damage of artificial grass planting gridsin the process of current sand control. The invention has the advantages of simple implementation technology and long engineering utilization period, can efficiently control mobile dunes and blowout pits, can be widely used for sand control and fixation engineering in China and is particularly suitable for desertification treatment in coal mining areas of Shanxi, Shaanxi and Inner Mongolia.