[目的]为了评价棉花长期连作土壤的物理性质即属性。[方法]利用棉花长期连作区试验,研究不同连作区棉田土壤粒度特征以及不同土壤层粒度特征的动态变化。[结果]库车县土壤多以细粉沙-中粉沙-极细粉沙-黏土为主的颗粒组成,属黏质壤土;沙雅县土壤多以粉沙-粗粉沙-细粉沙-极细粉沙为主的颗粒组成,属沙质壤土;新和县土壤多以中粉沙-粗粉沙-极细沙-细粉沙质地为主的颗粒组成,属粉沙质壤土。[结论]不同土壤剖面质地的粒度参数珔X、σ、SK与KG值与值存在差异,反映不同样地及不同土壤层的粒度特征。这为当地农业因地制宜发展提供了一定的理论基础。 [Objective] In order to evaluate the physical properties of long-term continuous cotton soil. [Method] With the long-term cotton continuous cropping area experiment, the characteristics of soil particle size and grain size in different cotton fields were studied. [Result] Most of the soil in Kuche County was composed mainly of fine silt-middle silt-fine silt-clay, which belongs to the clay loam soil. The soil in Shaya County was dominated by silt-coarse silt-fine silty sand - Very fine silt sand-based particle composition, is a sandy loam; Xinhe County soil and more in the middle of the sand - coarse sand - very fine sand - Fine silt texture consisting mainly of powder sandy loam. [Conclusion] The grain size parameters 珔 X, σ, SK and KG of different soil profiles were different with the values ​​of grain size, which reflected the grain size characteristics of different soil samples and different soil layers. This provides a certain theoretical basis for the development of local agriculture according to local conditions.