Abstract: Based on the survey data of 211 Quercus natural forests in East Hengduan Mountains, the growth curve of the relationship between the average height and age of dominant trees was fitted with 8 common equations, and the best result was H = 13.89417 / （1 + 4.06553e^−0.07257A）, which was used as the guide curve. A total of 6 position index curves of 8-18m were derived with 40 years as the base age and 2 m as the position index step, and the standard deviation adjustment method was used to form the site index table. The test results showed that there was no significant difference between the theoretical value and the actual value of tree height （ \chi ^2 < \chi _0.05^2 ）, indicating that the accuracy of the compiled site index table was high, and the accuracy of dropping point test was as high as 97.18%. The results also showed that the compiled site index table had strong applicability and could accurately reflect the site quality of Quercus natural forest in the study area. The data participating in the compilation were distributed in five age groups, and the research results could objectively reflect the status and quality of Quercus natural forest at different growth stages in the study area.