Abstract: Based upon the research of texture of jadeite jade by CL microscope, the characteristics of intergrainular, intragrainular grains and artificial treatment, jadeite jade CLT can be classified into 5 types——CL blastic texture, CL zonal texture, CL cataclastic texture, CL metasomatic texture and CL artificial treated texture. In this paper, the formation and evolution of jadeite jade CLT and its application in identification and quality evaluation and the study on principles of jadeite jade formation are discussed.