The invention relates to the field of milk-containing beverages, and in particular relates to brown rice milk, milk tea and preparation methods of the two. The preparation method of the brown rice milk comprises the steps of mixing pre-treated brown rice with water, soaking the brown rice, grinding the soaked brown rice into a thick liquid, and sieving to obtain a primary product mixing the primary product with an enzyme for enzymolysis, and carrying out enzyme deactivation so as to obtain the brown rice milk, wherein the enzyme is a mixture of glucoamylase and amylase. The milk tea provided by the invention has the quality meeting with the national standard and excellent protein stability, can be stored for a long term, has fine and smooth mouth feel, fresh and pure taste and both milk flavor and unique rice flavor, and is novel milk tea with comprehensive nutrition.
