Abstract: According to the mean annual increment in height and D. B. H. of 65 sample trees of different species, three growing types, i.e. fast-growing, medium and slow-growing, for the major species of tropical forest at Jianfengling area were classified. There are 83.1% of the total sample trees belonging to the medium-growing type and the growing process models in height, diameter and volume for the three types had been prepared separately. The volume increment in three types is still increasing and the age of quantitative maturity has not been found.In order to shorten the selection fellings cycle, technical maturity is need to be consideration. The regressive estimation shows that the increment of D. B. H., tree height and the individual tree volume would have reached 32cm, 23m, 0.9m3 respectively at the age of 40 in the fast-growing type, MO in the medium and 180 in the slow-growing type, these ages might be considered as a cutting cycle of selection.