The soil physical properties and chemistry characteristic had been studied during controlling of karst rocky desertification process in the karst rocky mountainous areas. The result showed that: in controlling rocky desertification process, the numbers of individuals and density of plant increased with the degree of soil meliorated. Soil compaction decreased, and soil porosity, capacity of water and fertility holding increased, soil organic matter increased, these were associated with the soil organic matter contents and plant coverage, the total numbers of bacteria, antinomycetes and fungi increased. Bacteria was dominate group, the numbers was increased: soil bacteria> fungi > actinomycetes. Meanwhile soil fertility and productivity increased.