The invention discloses a deodorization and deastringency processing technology for mulberry leaves, relates to the technical field of processing of mulberry tea, and solves the problem that the mulberry leaves have peculiar smell after being fermented. The processing technology comprises the following steps of picking fresh mulberry leaves, performing fixation, performing rolling, performing piling and deastringency, performing steaming deodorization, performing rinsing and filtering, performing secondary steaming, and performing baking for flavor enhancement; in the working procedures of piling and deastringency, a deodorant is added for performing piling and fermentation, so that the green astringent taste of the mulberry leaves can be removed, mulberry tea soup is more pure and sweet after taste, and faint yellow and bright color of the mulberry tea soup is guaranteed; in the working procedure of steaming deodorization, a deodorant is added,, so that peculiar smell of the mulberry leaves after piling and fermentation can be physically adsorbed, and the fragrance of mulberry tea is guaranteed; through the working procedures of subsequent rinsing and filtering, secondary steaming and baking for flavor enhancement, the bitterness and peculiar smell of mulberry tea are removed to a greater extent, drinking mouth feel of the mulberry tea is improved, and the quality of mulberry tea in color, fragrance and taste is improved.