Abstract: The influences of climate change on forestry geographic distribution,phenology,biodiversity,forestry structure,and productivity are expounded.The results show that the geographic distribution of main forest types changed mainly in the joint climate area,partly in appropriate chimate region.The vertical distribution of tree species probably may move to north and high altitude; the phonological dates may be prolonged or ahead of schedule,main species for plantation and rare species reduce in their optimal areas and new species move in.It is projected that the changing rate of net forest productivity will increase gradually from southeastern China to northwestern China, but the forest productivity patterns have no more change. Some main species structure is predicted to vary with global warming. Therefore, it is necessary to enhance the adaptation of the forest to climate change, planting trees and enlarging green areas,selecting species of resistance to arid,disease and pests.