In order to investigate the spatial pattern and spatiotemporal dynamics of Abies georgei var. smithii community in Sygera Mountains, the southeastern Tibet, China. A permanent plot of 1 hm² was set up in Abies georgei var. smithii stand. All the fir individuals were mapped in the plot and age, diameter at breast high (DBH), crown width and coordinates for each smith fir tree > 2 m were recorded. The diameter class structure was analyzed according to its distribution, and the spatial pattern of the population was analyzed by point pattern analysis. The results showed that (1) the diameter class distribution of A. georgei var. smithii was inverted "J" shape, indicating that the community had a stable structure and good natural regeneration. (2) The adult trees were almost randomly distributed in different periods and scales. The juveniles were aggregated at a small scale (2 m) in each period after 1891. Seedlings were aggregated at 1-41 m scale from 1981 to 2012 and at small scales (1-2 m) from 1861 to 1920. The largest scale range (1-35 m, 41 m, and 48 m) of seedlings aggregation was observed in 1951-1980. (3) In all the five periods, there was almost no or positive association between trees at different age groups. The association between adult and juveniles shifted from no association to positive association at all scales. Adults and seedlings showed no correlation at medium and large scales (32-35 m, 44 m, and 49 m), but the positive and or uncorrelated changes over time. Seedlings and juveniles showed a change from no association to positive association at small scale (8 m) and then positive association at small and medium scale (1-30m). The number of seedlings in the plot increased greatly in 1951-1980, and the number of saplings in the following 30 years also increased as the seedlings grew up, which in part increased competition in the fir stand. In general, Abies georgei var. smithii community had an intraspecific promoting effect during its succession.