Abstract: ＂Biomass＂is shot of three-dimension green quality,also named virescence three-dimension,refer to the spatial volume formed by stem and leaf of a plant. In order to study the measurement of Jiamusi University by grouping of artificial investigation, The model of relationship on tree＇s height and diameter for the crown of a tree,the stereoscopic geometry form and green quality equation are established based on the study of the stereoscopic geometry form using a method of estimating tridimensional volume by tridimensional volume and measuring three-dimension green quality in A 、B、C、D area of Jiamusi University.These results showed that these were 57 kinds of trees and shrubs, the three-dimension was 414 815.34 m3.