Abstract: [ Objective ] To explore the spatial differentiation characteristics of soil moisture and particle size in opencast coal mine dump under different vegetation restoration measures. [ Method ] Taking the dump of Manlailiang Coal Mine in Ordos City, Inner Mongolia as the research object, the leaf-eating grass ( SYC ), Cerasus humilis ( OL ), Xanthoceras sorbifolia Bunge ( WGG ) and seabuckthorn plots with different restoration years and configurations ( SJD-1a, SJS-2a, SJD-2a ) were selected, and the unrestored platform CK was used as the control. The soil samples of 0-30 cm were collected in three regions of windward, center and leeward, and the soil moisture content and particle size composition were determined. [ Result ] 1 The soil moisture content of all restoration plots was significantly higher than that of CK ( 4.15 % ). The water holding capacity of the leaf-eating grass plot was the best, and the moisture content of the 10-20 cm soil layer in the leeward direction was 9.37 %. 2 ) The soil moisture content and particle size showed a spatial pattern of ' leeward > center > windward ', and the fine particles ( clay and silt ) were significantly enriched in the leeward direction, and the clay content of the leaf-eating grass plot increased by 262 % from the windward direction to the leeward direction. 3 ) The extension of restoration years and the combination of shrub and grass were helpful to improve soil water holding capacity and particle size structure, but high-density planting ( two rows and one belt of seabuckthorn ) could easily lead to surface water depletion. [ Conclusion ] It is suggested that herbages such as leaf-eating grass should be preferentially selected in the ecological restoration of dumps, combined with shrub-grass composite models such as ' two rows and one belt ' sea buckthorn, and configured according to micro-topography, so as to synergistically improve soil moisture retention and structural stability, and enhance wind erosion resistance.