The paper study on the soil spatial heterogeneity and plant community properties from different stocking-rate grasslands after 4-year rest grazing in Inner Mongolia steppe. It was indicated: as the conditions of maintaining the homogenization of spatial pattern of soil nutrients and vegetation was disappeared, the spatial heterogeneity of soil nutrients and the ratio of random factors were increased after 4-year rest grazing. The spatial heterogeneity of 0.00sheep/hm２ block for soil organic C, total N, inorganic N, available P and S is the largest, and the smallest is 4.00sheep/hm２ block. The other parameters were showed different diversification of soil nutrient came from different testing fields. The biomass and coverage of plant community were increased after 4-year rest grazing, but no significant different for plant community coverage (p>0.05). It was significant different on the biomass of plant community compared with in 1998(p<0.05). A diversified trend of preponderant plants for 0.00sheep/hm２ block was existed. Thicketization of plant community was correlated with stocking rate and succession sequence of time, the smaller of stocking rate and the longer the succession sequence of time, the more significant of thicketization. The ratio of Aneurolepidium chinense, Stipa krylovii, Kochia prostrate, Artemisia frigida (except 6.67 sheep/hm２) and Melissitus ruthenica (except 0.00sheep/hm^２) was increased respectively, but Potentilla acaulis was decreased after 4-year rest grazing. The biomass, height, coverage and diversity of plant community were took on the positive correlations with the distribution of soil nutrients, however there was only significant different between community biomass, height of plant community and soil organic C, total N, inorganic N, available P and S (p<0.05).