In order to reveal the influence of different rocky desertification restoration modes on soil structure and physicochemical properties after 20 years of afforestation,the distribution characteristics of soil physicochemical properties under seven rocky desertification restoration modes in central Yunnan Province were studied and multi-index clustering were conducted.The results showed that,except for Keteleeria fortunei,the soil nutrient grade of the other plots were medium and high level;the soil particle composition was more reasonable,the degree of fractal was better,and the resistance to erosion was stronger.The different types of vegetation restoration had obviously different effects on the improvement of rocky desertification soils,and mixed forests were significantly better than pure forests.Due to the influences of soil parent material,topography,and hydrology,there were differences among the same restoration types,the Pinus armandii Franch.and Keteleeria fortunei;were generally poor.The soil erodibility factor K in the study area was characterized by positive variation in relation to the content of powder particles.The Q-clustering of soil physicochemical properties could classify the sample soils into four categories,and Keteleeria fortunei and Pinus armandii Franch.were separated out separately.The results of this research could provide theoretical basis and technical support for the local government to formulate scientific and reasonable ecological prevention and control measures of karst rocky desertification.