Abstract: Significant amount of glycosidically bound form volatiles are accumulated in the leaves of Camellia sinensis(L.) O. Kuntze with monoterpene alcohols and aryl alcohols as the major aglycones. These aglycones will be released from their respective glycosides by endogenous enzymatic hydrolysis under the conditions of leaf plucking, tissue damage, pest damage or malady infection etc. The released volatiles play the roles of tea aroma, anti-herbivore or anti-microbial activities. The physical and chemical factors of surrounding stress will probably induce biosynthesis and accumulation of glycosidic aroma precursors.