The green color of jadeite jade was measured and placed in the CIE LAB even color space. The distribution of color was analyzed in order to establish a relation of L^*, a^*, b^*, C^*, h_ab for the green color of jadeite jade. When L^* is low, h_ab keeps relatively unchanging and C^* and L^* are linearly interrelated. When L^* increases, the scope of hab increases a little and C^* reaches its peak when L^* is approximately 40. This information will have a positive effect on grading jadeite jade to a great extent in that it simplifies and guides the manufacture of jadeite jade color chips.