Ten environment indicators are selected as key factors influencing forest soil fertility characteristics in closure area by using the method o f main composi tion analysis. Forest soil fertility is divided into four types in closure area by the way of clustering analysis, and the classi fication result is checked up. On the basis of integ rate evaluation on four types of soil fertility, the measures of vegetation restoration and its management utilization direction are given as the different fertilty type. There are actual produce mea ning so fresearch result to reasonable utilization, soil resource restoratio n and forest construction.