Geostatistics method in combination with GIS was employed in this research to study the spatial distribution characteristics of soil nutrients for Osmanthus serrulatus community and to figure out the coordinated relation between O. serrulatus community and soil nutrients with Dongla Mountain in Baoxing County of Sichuan Province as the study area, aiming at protecting the O. serrulatus population which is declining due to habitat fragmentation. The results show that: (1) only a small number of species with barren tolerance such as O. serrulatus can finish the life circle in the active limestone mountain region of Dongla Mountain, which is characterized by low maintaining capacity of soil moisture and fertilizer. (2) The distribution of O. serrulatus community in Dongla Mountain is significantly correlated with the content of organic matter, nitrogen, phosphorus and potassium in community soil and the nitrogen, phosphorus and potassium determine the reproductive pattern of O. serrulatus community. (3) As part of the whole O. serrulatus ecosystem, soil achieves the balance of matter and energy in the ecosystem, leading to the formation of “isolated island” of small ecosystem by O. serrulatus among the geographical isolation suitable for their growth.