Abstract: To reveal the wood property and forecast early wood quality, the radical variation of wood tracheid length, width and crystallinity in each annual ring of Calocedrus macrolepis Kurz were analyzed,and the correlation ship of crystallinity and tracheid characters was also set up. The results showed that the tracheid length, tracheid width and crystallinity were 1 886-3 370 μm, 7-23 μm, 30.26%-50.12%, respectively. The radical variation tendency of these indexes increased with the growth ring numbers increasing, but which was stable after 20 a growth. So the maturation stage of C. macrolepis was 20-25 a. Correlated analysis of crystallinity and anatomical features indicated that the crystallinity was significantly positive correlation with spring and summer wood tracheid length,spring and summer wood tracheid width,the correlation coefficient were 0.933, 0.991, 0.955 and 0.964, respectively. Based on these, there was a prediction model of the crystallinity and wood tracheid parameters established, the correlation coefficient were 0.95.