In order to study the spatial distribution characteristics of soil moisture in Sabina vulgaris Ant. community, this paper took the vegetation of Sabina vulgaris Ant. in the southern edge of Mu Us as the research object. Ten plots were selected and soil samples were taken by cutting ring. The soil moisture content and water storage were measured and analyzed by soil drying method. The following results were obtained:(1) There were significant differences among the soil moisture contents in the plots with different slope positions (P<0.05). Soil moisture content and water storage were lower of dune > middle dune > lowland among sandy dune > sand ridge, middle dune > lower of dune > lowland among sandy dune > sand ridge. (2) There were significant differences among soil moisture contents under different slopes (P<0.05). Both soil moisture content and water storage showed that leeward slope>windward slope. (3) There were significant differences among soil moisture contents under the influence of vegetation inside and outside the forest (P<0.05). Both soil moisture content and water storage were grassland > Sabina vulgaris Ant. > Sand. These results showed that Sabina vulgaris Ant. Community had certain influence on spatial distribution of soil moisture.