PURPOSE: To obtain high-quality tea having both characteristics of refined green tea and tea efficiently, by steaming raw tea leaves incompletely and heating them at the optimum temperature for fermentation of enzyme in each process of rough rubbing, rubbing and medium rubbing so that parts which are difficult to steam can be completely fermented.

CONSTITUTION: Firstly, raw tea leaves are incompletely steamed and parts which are difficult to steam are not steamed and left as parts for fermentation. Then, the steamed raw tea leaves cooled, successively treated in rough rubbing, rubbing and medium rubbing while heating them at the optimum fermentation temperature lower than a constant drying temperature (36±2°C) and unsteamed parts are completely fermented with an enzyme contained therein. Finally, the raw leaves are redried and then dried.