[Objective] To analyze the structure of wind blown sand at a specific height, in order to clarify the disciplinarian of wind blown sand, and provide the theoretical basis for preventing and controlling desertification in central Tarim Basin.[Methods] Omni-directional microinverse sand trap and anemometer were used to collect sand transport sample of wind blown sand from July to August in 2014 and wind-sand transport rate, wind speed in the near surface layer (0-85 mm) were analyzed.[Results] The most fitting relationship between sand transport rate and wind speed was power function, the correlation coefficient was 0.9687. Along with the increase of wind speed, sand transport rate mainly concentrate on 0-35 mm layer,meanwhile, it showed ascending trend in 0-5 mm and 15-35 mm layers, and descending trend in 5-15 mm and 35-85 mm layers.[Conclusion] Wind blown sand movement is the process of sand sediment transport in the near surface layer, and sand sediment discharge more and more concentrated on the range from 0 mm to 35 mm with the increase of wind speed. Thus, it requires taking various measures to change the state of near earth surface wind blown sand structure and meanwhile which can effectively weaken the strength of the sandstorm activities.