The invention relates to a green brick tea wine and a preparation method thereof. The green brick tea wine takes rice, sorghum, wheat, a green brick tea liquid and flavoring fermented grains as main raw materials, and the green brick tea wine is obtained through four following steps: raw material pretreatment, fermentation, tea making and distillation. The green brick tea wine is obvious in healthcare function, pure in fragrance, excellent and pure in tea fragrance, soft and harmonious in wine body, soft, sweet, refreshing and long in aftertaste, has the fragrance and taste of green brick tea, is moderate in alcohol content, is high in contents of polyphenol, vitamins, amino acids, phospholipid, catechin and selenium in the green brick tea, and has high health care effects; the green brick tea wine prepared by the method is transparent in color and luster, gives people a fresh and pleasant feeling, achieves the tea flavor and the wine aroma, has attractive unique aroma, and is mellowand harmonious in taste, free of the bitter taste of the tea liquid, typical and elegant in style, and good in various sensory evaluation scores.