Difference of chemical constituents at different position in tea shoot(Camellia sinensis var. yabukita) of the first, second and third crop was investigated. Result of this analysis are summarized as follow. The contents of tatal nitrogen, tannin, caffeine, amino acid, theanine and Vit.C was decreased in leaves of lower position, but that of chlorophyll was increase. The contents of fatty acids was increased to 3rd lear, but was decreased 4th leaf, showing higher content in the leaves than that in the stem. The contents of ammonium, potassinm and magnesium were rich in the leaves of upper position, while that of sodium and calcium were rich in the leaves of lower position. The contents of total nitrogen, amino acid, theanine and Vit. C were rich at earlier pluckin seasons. The content of fatty acids at the 1st and 2nd plucking season was contained more amount than that of the 3rd plucking season The content of chrolophyll at the 2nd plucking season was contained more amount than that of the 1st and 3rd plucking season.
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