The invention relates to a fine processing method of mellow green tea, and belongs to the technical field of a green tea process. The fine processing method of the mellow green tea utilizes normal green tea blanks as raw materials and comprises the following specific steps of alcoholizing tea blank, tightening tea strips and raising aroma, polishing, treating polished tea strips by a tea vibrating-shifting machine, treating the vibrated and shifted tea strips by a tea round shifter, winnowing, picking out, blending and stacking, and packaging to obtain finished products. According to the fine processing method of the mellow green tea, disclosed by the invention, an after-fermentation process of dark green tea is used for reference, that is the principles of a damp and hot function, an enzymatic reaction, microbial fermentation and the like isare utilized; the unique alcoholizing step is utilized, so that the problems that Sichuan bulk green tea is full of bitter taste and is not suitable for exporting are effectively solved; the mellow green tea made by the fine processing method disclosed by the invention has the quality characteristics of uniform appearance, tight and thin strips, high smoothness, rich fragrance, thick and mellow taste, no bitter taste and yellow-green and bright liquid color so as to matcheet the quality requirements of exported green tea and to lay an excellent foundation for development of a Sichuan bulk green tea market.