Abstract: Based on the investigation data from a 4hm² plot of Pinus tabulaeformis-Quercus wutaishanica forest in Lingkong Mountain Nature Reserve of Shanxi Province, China, and by using O'ring point pattern analysis method, this paper analyzed the spatial pattern and relevance of constructive species in this forest. On horizontal distribution with smaller scale (0-20 m), a positive spatial association was observed within the population of P. tabulaeformis but not Q. wutaishanica. The more detailed comparisons showed a negative relevance between P. tabulaeformis and Q. wutaishanica at upper layer, and between upperlayered P. tabulaeformis and intermediatelylayered Q. wutaishanica. In the horizon of greater scale (>20 m), no horizontal relevance was observed within the populations of each species. There was no correlation between P. tabulaeformis at lower layer and Q. wutaishanica at intermediate layer in the areas with a scale greater than 10 m, although their relevance was insignificantly positive in the scale of 0-10 m. Further comparisons found no horizontal relevance between the intermediatelylayered fractions of the two species, and between the lowerlayered Q. wutaishanica and each layer of P. tabulaeformis. Vertically, both positive and insignificant spatial relevance were observed within the populations of each species. However, in the areas with smaller scale (0-20 m), the negative relevance in vertical distribution pattern was significant between the two species.