Based on field investigation, we statistically analyzed the species diversity of vascular plants in the new stage volcanic lava plateau in Wudalianchi, The results show that:(1)there are 35 families, 66 genera and 82 species in volcanic lava plateau. Dominant families have arealtypes of 34 genera and 47 species, which accounted for 51.52% and 57.32% of total genera and total species; There are 30 families, 61 genera and 75 species in seed plants, which is absolute advantage of temperate distribution; Plant resources can be divided into 12 classes on nature and application, such as medicinal, ornamental honey and so on;(2)On classification of Raunkiaer lifeform, herb with hemirvphytes is the most dominant, the next are trees and shrubs with phanerophytes;(3)In the ecological types of water, the mesophytes is the most, and the xerophytes is more. Because of unfavorable ecological conditions, such as the new lava, weak weather, rainfall seepage and stronger evaporation, these are lithophytes and specific plants in volcanic lava.