Abstract: The distribution and variation of sand amount(A), absolute and relative, at the height layer of 0-10 cm are qualitatively and quantitatively analysed. In qualitative analysis, discusses three main factors affecting the structure of wind-sand flow, namely wind velocity(V), total transport quantity of sand(TQ) and underlying surface. In quantitative analysis, studies the variation laws of the transport quantity of sand(Q) with height(H), Q in upper, middle and lower layers in the wake of V and TQ, and TQ along with V. On the basis of above analyses, finally discusses the indexes of wind-sand flow structure and raises some idea about the study on the wind-sand flow structure from now on.