The theory of forestry health is applied to study the forestry health in Badaling Forest Farm.It is found that forestry health in the farm is affected by insect pest

forest fire

irrational forestry strand structure

low-level management in forestry

and drought and snow break.The unhealthy forest in the farm is estimated to be over 60 percent.The goal and principle of forestry health on conservation and instauration in the farm are brought forward.Five vegetation management models of forestry health of resuming of land

configuration regulation of low forest

ecological thinning intensity

target tree of approaching-nature and ecological remediation are presented.Based on the spatial database of project area

spatial database of 121 representative sample areas and minute sample areas as well as integrating particular pattern

the management pattern of 240 minute sample areas is established for the farm.