Abstract: According to the theory of productivity evaluation, and taking the land exploitation program of Mengjia Lake Forestry Centre, in Shou Country,Anhui Province, as example, the author selects 16 affect factors of the land exploitation area of the unused land. Based on the analysis by the numbers of the Analytical Hierarchy Process (AHP), the author carried through the account of the value and the result analysis of the colligating estimate to every affect factor using the method. Results show that the soil thickness is the most affect factor of the land exploitation area of the unused land , and then the obstacle layer status, the soil character and the soil organic element content. And it shows that the adopting of the Analytical Hierarchy Process bears better practicability to carry through the productivity evaluate of the land exploitation area.