Abstract: To study the effects of different soil cover types and the application of yak manure on soil restoration in the mining area of Zoige Plateau and determine the best soil cover conditions, with a typical abandoned mine as the object, the physicochemical properties, particle composition, and fractal characteristics of three soil types (aeolian sand soil, sandy meadow soil, loamy meadow soil) and yak manure treatment were analyzed. Redundancy analysis and principal component analysis were used to determine the main influencing factors of particle size distribution. The response relationship between soil physical and chemical properties and particle size distribution was studied by using the grey correlation and coupling model. The results showed that: The composition of soil particles in the study area was mainly sand particles (58.4%-94.9%), followed by silt particles (3.8%-32.7%), clay particles content was the least (1.3%-8.9%), and the fractal dimension was between 2.37-2.66. Sand particles volume content had the most significant effect on the fractal dimension. The soil quality under the three types of mulching was as follows: loamy meadow soil > sandy meadow soil > aeolian sandy soil, and there was a trend towards increased desertification in the aeolian sandy soil treatment. Adding yak manure could alleviate soil nutrient deficiency to a certain extent and promote more refined particle size distribution. Soil organic matter, total nitrogen, alkali-hydrolyzed nitrogen, and moisture content were highly correlated with clay and silt particles, and soil bulk density was highly correlated with sand particles. Organic matter content had the greatest driving contribution to particle size distribution variation. The order of the degree of system coupling coordination was: loamy meadow soil > sandy meadow soil + yak manure > loamy meadow soil + yak manure > sandy meadow soil > aeolian sandy soil + yak manure > aeolian sandy soil. But the degree was all at a low level, with only the loamy meadow soil treatment reaching a moderate level of coordinated development at 0.727. In summary, the degree of soil desertification in the Zoige Plateau mining area was serious, and the volume content of sand particles can be used as an indicator of the restoration effect. Adding yak manure during the soil cover reconstruction process could be a reference measure. At the same time, loam meadow soil was recommended to ensure the restoration effect of mines.