Abstract: The experiment on mycorrhizal inoculation in pure stand of Cyclobalanopsis chungii disturbed by intemperate mushroom collection was conducted to study the effects of mycorrhizal biodiversity on fine root mass of Cyclobalanopsis chungii and basidiocarp yield of Russula vinosa.Results show that mycorrhizal species found in the treatments surpasses the contrast by 11. Total basidiocapes of Russula vinosa are 11.25kg/hm² higher and fine root mass in 0～100cm and 0～10cm soil core 3.35t/hm²，3.26t/hm² higher than those of the control significantly. It is concluded that mycorrhizal biodiversity improves fine root mass and enhances the abundance and frequency of mycorrhizal basidiocarp.