This study investigated in the vascular plants of high value ecological conservation Unjangsan (Mt.), Jeollabuk-do, Korea. The numbers of vascular plants were summarized as 604 taxa including 107 families, 343 genera, 530 species, 5 subspecies, 58 varieties and 11 forms. The rare plants were 12 taxa including Paeonia japonica (VU), Syringa patula var. kamibayshii (LC), Cynanchum inamoenum (VU), Schpolia japonica (LC), Scrophularia koraiensis (DD) and so on. The Korean endemic plants were 16 taxa including Pseudostellaria coreana, Clematis trichotoma, Stewartia pseudocamellia, Ajuga spectabilis, Cirsium setidens and so on. In the specific plants by floristic region were 60 taxa, a degree I were 29 taxa (Sisymbrium leteum, Ilex macropoda, Eleutherococcus sessiliflorus, Cirsium pendulum, Veratrum versicolor and so on), 21 taxa of a degree II (Morus cathayana, Phellodendron amurense, Euonymus pauciflorus, Angelica tenuissima, Heloniopsis koreana and so on), 8 taxa of a degree III (Rhynchosia acuminatifolia, Stewartia pseudocamellia, Cynanchum inamoenum, Schpolia japonica, Scrophularia koraiensis and so on), Wisteria floribunda (Planted) of a degree IV and Prunus yedoensis (Planted) of a degree V. The naturalized plants were 42 taxa including Phytolacca americana, Solanum carolinense, Ambrosia artemisiifolia, Aster pilosus, Poa pratensis and so on. Naturalization rate (NR) was 6.9% of all 604 taxa of vascular plants and the invasive alien plants were 3 taxa including Solanum carolinense, Ambrosia artemisiifolia, Aster pilosus. This study is to identify the main plant distribution and protecting valuable plant populations Unjangsan areas in Jeollabuk-do is located in the inland performing will want to take as the basis for designating an ecological and landscape conservation areas.