Abstract: To study the growth regularity of 12-year-old Aquilaria sinensis plantation, this paper investigate about A.sinensis plantation and select representative stand trees for stem analysis in 2023 in Nanan City, Fujian Province.The results showed that the average diameter of height、DBH(without bark) and individual volume of 12-year-old trees reached 10.90 m、16.73 cm and 0.10359 m³ respectively.the annual increment of DBH(without bark) and height achieve the maximum value of 5-year and 6-year respectively, but the current annual increment of individual volume reached the highest point at the age of 11-year-old; the current annual increment curve and the mean annual increment curve of height、DBH(without bark) and individual volume is not intersection, which reflected that the trees is the high-speed growth stage of height、DBH(without bark) and individual volume and not reached numerical maturity.The radial distribution of 12-year-old A.sinensis plantation exhibited normal distribution, which showed that the plantation structure is high stability.The growth process of 12-year-old A.sinensis plantation using different models combined with SPSS statistical software is fitted, which showed that the best models of is Richards model.The correlation coefficient of height、DBH and individual volume by using Richards model is 0.9982、0.9982 and 0.9997 respectively, and the model had high prediction accuracy, which reached 99.91%、99.91% and 99.99% respectively.The Richards model had high precision can be used in production practice predictions, which has important guiding significance for using the production and operation management of A.sinensis.