The invention discloses a method for processing a loquat leaf beverage, which comprises the steps of cleaning, disinsectization, sterilizing, rinsing, spreading and drying, water extracting, cooling and filtrating, blending, sterilizing and stocking. The processing method extracts the functional substances of the loquat leaf according to the characteristic that the loquat leaf is rich in compounds containing flavone, comparatively more inorganic salt, protein, glucide, amino acid needed by the human body and other nutrients, different edulcorants, antioxidants and complex densifiers are added to produce the beverage, which not only improves the added value of resources, but also increases the income of fruit growers and has remarkable economic benefits and social benefits. Fallen loquat leaves are usually taken as waste and burnt in loquat orchards, which not only wastes resources, but also pollutes the environment. The processing method takes the fallen loquat leaves as raw material, thereby utilizing waste effectively.