In this paper, the green of natural jadeite has been renamed and classified in numerical way.Furthermore, in order to value the jadeite, authors have established a new standard to evaluate the quality of the natural jadeite’s green color. When renaming the green of jadeite,authors name 1° as one percent in HSB mode of PhotoShop. The green of jadeite is classified into 6 species:pure green, very slightly yellowish green, very slightly bluish green, slightly bluish green, yellowish green and bluish green. authors evaluate the green of jadeite according to index S saturation and B brightness respectively, and then uniting the two indexes, establishes a new standard to evaluation the degree of the quality of the green of jadeite.
