Abstract: In order to excavate the wild resources of ornamental plants sufficiently, 15 appraisal indexes were determined and an evaluation model was established, Analytic Hierarchy Process (AHP), for the wild resources of ornamental plants based on the characteristics of the wild resources. The wild ornamental plants in Wuchuan area of Inner Mongolia were evaluated using the appraisal system. The results showed that the exploitation value of some wild ornamental plants was the highest such as C.mongolica Bunge、T.serpyllum L. etc.; some of the exploitation value was higher such as L.vulgaris Mill.subsp.sinensis(Bebeaux) Hong, E. bungei(Kitag.) Kitag. etc and the exploitation value of the others was very low such as G.multiflora Bunge、A.ptarmicoides Marxim.etc. This method system is proved to be satisfied in flexibility and accuracy and it was a scientific foundation for exploiting and utilizing the wild resources of ornamental plants rationally.