By comparison with previous studies, I investigated the 22-year changes in interspecific association of the climatic climax vegetation in Dinghushan, Guangdong, China. The results showed that composition of species, especially dominant species, did not change significantly in the past 22 years (1984—2006), suggesting that the Cryptocarya concinna-Cryptocarya chinensi-Castanopsis chinensis-Schima superba community (Cryptocarya community for short, the same below) was at the phase of climax and relatively stable in species composition. There was a mitigation of interspecific association intensity in 2006 compared to that in 1984. Species pairs with high association coefficient (AC) value decreased in number, and the number of cases of absolutely positive or negative association value decreased from 15 to 5 during 19842006. However, the pairs with an AC value less than 40 increased from about 50% to 60% of total species pairs during the same period, indicating a transition of distribution pattern of dominant populations from aggregation to independence. Interspecific association was influenced by competition specialty in certain species, which was firmly related to the selection of species toward community and the natural selection of community toward species I have no idea of this sentence. Please refer to English literature for confirmation. The characteristics of Cryptocarya community preserved even after special insect plagues had brought intense fluctuation to its structure, which indicates its structural stability and self-regulation ability. Populations in the whole community tended to distribute unattachedly (this should be an adv. instead of an adj.) along the process of development in spite of relativity: the strongly unattached distribution pattern (an absolutely unattached association) weakened, while the weakly unattached distribution pattern (a weak association) intensified.