This paper,through the analysis of the results of growth of Taiwaia flousiana in different canopy densities of Chinese fir and the harmonious relationship between species,shows that Taiwaia flousiana grows well under the Chinese fir canopy and Chinese fir reserved closure is controlled at between 0.4 ~ 0.6.The preservation rate of Taiwania flousiana,diameter at breast height,tree height growth and the diameters at breast height (DBH)of Chinese fir grow best.