以土壤颗粒组成数据为基础，分析了我国土壤颗粒组成的分形维数。结果表明，不同质地的分形维数存在一定的差异，分形维数随土壤质地的变细而增大；由北至南、由西向东和由西南至东北，我国主要地带性土壤的分形维数逐渐递增；成土母质对土壤质地分形维数有很大影响，易风化母质上发育的土壤质地分形维数高于难风化母质上发育的土壤。 Based on the data of soil particle composition, the fractal dimension of soil particle composition in China was analyzed. The results show that there are some differences in the fractal dimension of different textures. The fractal dimension increases with the thinning of the soil texture. From north to south, from west to east and from southwest to northeast, the fractal dimension of major zonal soils in China Gradually increasing. The soil parent material has a great influence on the fractal dimension of soil texture, and the fractal dimension of the soil texture developed on the easily weathered parent material is higher than that of the soil on the hard weathering parent material.