The environmental gradient analyses and the continum analyses were applied for the ordinationa of forest vegetation in Seonunsan area. In the soil moisture gradient, mesic to xeric, Zelkova serrata, Carpinus tschonoskii, Quercus aliena, Carpinus laxiflora, Quercus serrata, Quercus variabilis and Pinus densiflora type were arranged as a series of sequence along the gradient. In two dimensional analyses of soil moisture and organic matter gradients seven vegetation types mentioned above were also separated one another. Especially Carpinus tschonoskii in mesic-fertile sites adn Pinus densiflora in xeric-sterile were noticeable. The results of continum analyses were corresponded to those of environmental gradient analses for the forest vegetation.