Pinus tabulaeformis is the dominant species in the most widely distributed temperate coniferous forest community in northern China. The species is resistant to low temperatures, dry conditions and poor soil nutrient status. It is also one of the most important tree species for afforestation in large parts of northern China. Taiyue Forest Area is famous for its Pinus tabulaeformis in Shanxi Province, where it is known as the “township of Pinus tabulaeformis”. Since the closing of the hillsides to facilitate afforestation without disturbance for a long time the forest in Ma Chibei area formed a unique natural Pinus tabulaeformis climax community. In order to study the community spatial distribution pattern, a 400m2 (20m×20m) plot of natural Pinus tabulaeformis was established in the Ma Chibei area on the Ling Kongshan Forest Farm of the Taiyue Forest Area in July 2007. All trees in the plot with a diameter at breast height (DBH) of 1cm or more were tagged, mapped, measured and identified as to their species. The measurements included the DBH, total tree height, two crown diameters (East-Westerly and North-Southerly direction) and height to the lowest live branch. The spatial distribution pattern of the trees in the plot was evaluated using four indices: the Coefficient of Dispersion (C), the Index of Mean Crowding (m*), the Index of Patchiness (m*/m) and Morisita’s Index (Iδ), The study focused on the sensitivity of the spatial pattern of Pinus tabulaeformis by changing the sampling scale and diameter range, and on the spatial pattern of the dominant, the overtopped and the dead standing trees of Pinus tabulaeformis. In addition, the spatial patterns of Quercus liaotungensis and other broad-leaved trees were evaluated using the four indexes. A total of 3561 trees with a DBH ≥ 1cm were recorded in the plot, which includes 35 species, of which 2583 individuals or 72.50 percent were Pinus tabulaeformis (2482 live and 101 dead standing); 319 were Quercus liaotungensis, the main associated tree species of Pinus tabulaeformis. The other 33 tree species together made up 18.4 percent of the total number, none of them was represented by more than 4 percent. In the structure composition of storey，Pinus tabulaeformis lies in upper-middle level, all other trees except Pinus tabulaeformis only account for 4 percent of the total number of the trees with a height ≥ 10m；Lower level storey is made of trees less than 10m and shrubs. The DBH distribution of Pinus tabulaeformis in the plot is unimodal and shows a maximum frquency in the diameter range 28—36cm. Pinus tabulaeformis shows a clumped spatial distribution at three different sampling scales (5m×5m,10m×10m, 20 m×20m). The change of scale had no obvious effect on the degree of spatial aggregation. However, the biggest Pinus tabulaeformis (d＞44cm) were randomly distributed. Thus, during the development of Pinus tabulaeformis, the spatial pattern gradually changed from clumped to random. The dominant, the overtopped and the dead standing trees of Pinus tabulaeformis as well as Quercus liaotungensis and other broad-leaved trees all showed a clumped distribution.