Abstract: The upper epidrmis of tea leaf consists of cells about 30 40 μ in diameter, with slightly sinuous cell surface and devoid of stomata or hairs. The lower epidermis consists of cells about 50–70 μ in diameter, with more sinuous walls. Stomata confined to the lower surface, surrounded by 3–4 round, subsidiary cells. The upper andlower epidermis of the wild tea of southwest China show the difference in surface texture. Luxuriant wax of the epidermis is in knob or club shape. There are two types of stomata (namely general stomata and stomata of sunken crypts (gland scale)) on the same leaf. The numbers of stomata are distributed 70–100/mm2. Hairs are short and rare, or none. Intercellular flanges between epidermis is steep and thick in wild tea. The protruded parts of the torus are in the form of “foot”. The flanges of the cuticle are rather deep.