Through the investigation of forms of life and geographical factors of the medicinal flora of experience in the Dao ethnic in Dong Hy district, Thai Nguyen province, medicinal flora here is composed of five main elements: tropical, temperate endemic elements and world crop factor. Life forms of medicinal plants mainly in the group with 171 species of tree buds, shoots halfhidden group of plants with 23 species, tree buds hidden group of 15 species, a group of tree species and species groups with 9 buds close to the ground at least 2 species.