Abstract: The Luya Mountain (38°36’-39°02N, 111°46’-112°54’E) is located on the Shanxi Plateau (a part of the Loess Plateau). The highest peak goes up to 2772 m and the natural conditions vary greatly with elevation. There are 72 families, 201 genera and 309 species of seed plants in the Luya Mountain area. Temperate plants are absolutely dominant in this area. The vertical zones of vegetation in the Luya Mountain are divided as follows: forest-steppe zone (1300-1500m); deciduous broadleaf forest zone Platycladus orientalis forest subzone (1350-1550m), Pinus-Quercus forest subzone (1550-1700m); coniferous and braodlcaf mixed forest zone (1700-1850m); cold-temperate coniferous forest zone(1750-2600m); subalpine scrub and grassland zone (2450-2772m), The characteristics of each zone are expounded.