It has been reported that in tea shoots injured by mechanical means monoterpene alcohols, as linalool and geraniol, were produced from the bound type compounds. The content of linalool and geraniol produced in injured shoots was higher in spring season than in summer season. The variations in the amounts of linalool and geraniol were genetically related. Namely, the assamica variety produced mainly linalool and some special clones of the sinensis variety cultured in Taiwan and Fuchien produced a high content of geraniol. Most clones in var. sinensis produced both linalool and geraniol.