Daiyun Mountain is one of two great mountains in Fujian Provice, located at the boundary between mid-subtropic and south subtropic. Daiyun Mountain National Nature Reserve established in the sample area is one of the nature reserves with the highest biodiversity in unit area in China. Daiyun Mountain has 6400 hm² protogenesis Pinus taiwanensis community which is the most south tip,the biggest area and the best preserved natural P.taiwanensis community area in China mainland. Daiyun Mountain also is the largest germplasm genetic base of P.taiwanensis in China, which is important to carry out research on the succession of mid-subtropical vegetation. Based on the field investigation of thirty-one sample plots (20 m × 20 m) of P.taiwanensis community in Daiyun Mountain, the environmental factors (11 soil factors and 4 terrain factors) were selected. The relevance between distribution pattern and environment was discussed by Detrended Canonical Correspondence Analysis (DCCA). The relationship among environmental factors was quantitatively analyzed. The results showed that:(1) The DCCA first sorting axis mainly reflected spatial variability of elevation, the second axis mainly reflected the change of slope, slope tends to the sunny side with the second axis from top to bottom, meanwhile P. taiwanensis communities distribute obviously. (2)The DCCA sorting indicated coefficient between the first axis and the elevation reaches 0.5570, that is, elevation is decisive function factor for P.taiwanensis communities,presenting the higher elevation is, the more remarkable P.taiwanensis population is especially in elevation 1400-1600 m.(3) Different species of P.taiwanensis communities has different environmental factors in the DCCA sorting chart, simultaneously the slope, the slope position, the organic matter, the human factor also are the important factors of P.taiwanensis communities. (4)The sorting results obtained from DCA (Detrended Correspondence Analysis), CCA(Canonical Correspondence Analysis)and DCCA have some differences.DCA mainly reflects P.taiwanensis community difference, while CCA exists "Arch Effect". With a combination of DCA and CCA, DCCA showed a higher correlation coefficient between the P.taiwanensis community and environmental sorting axis as compared with DCA, indicating that DCCA can give a better explanation on the relationship between P.taiwanensis community and environmental factors such as elevation and organic matter. Moreover, there is not "Arch Effect" in DCCA. Therefore, DCCA may be the best choice in study on the relationship between P.taiwanensis community and environmental factors.