Abstract：Large-area low-efficiency forest has seriously impeded the sustainable forestry development. To explore the appropriate conditions and measures of improving low-efficiency arbor forest into bamboo-arbor mixed forest, the study analyzed the impacts of slope direction, stand canopy, land clearing mode, types of bamboo seedlings and afforestation density on the growth of Phyllostachys pubescens by planting this bamboo species in low-efficiency arbor forest. The result showed that the canopy of forests that were most suitable for Ph. Pubescens growth is 0.30, and after the splitting bush, the original clump-seedlings were planted with the density at 500 /ha; the stand went mature at the 4th year and entered the harvesting period at the 6th year, and when the 7th year came, the new bamboo culms could reach the average diameter of 6.9 cm, and the bamboo coverage at 60%, which marked the formation of bamboo-arbor mixed forest. The slope direction had no impact on Ph. pubescens growth, and both sunny slope and shady slope were all suitable for its growth.