The invention provides a preparation method of a
medicago sativa
solid beverage. The preparation method comprises the following steps of cleaning fresh
medicago sativa, and then sequentially performing
mashing, filtering, and concentrating so as to obtain concentrated
serous fluid; adding auxiliary materials to the concentrated
serous fluid, and performing uniform mixing so as to obtain molding material fluid, wherein the auxiliary materials comprise
cyclodextrin; and performing spraying
granulation on the molding material fluid so as to obtain the granular
medicago sativa
solid beverage. According to the preparation method disclosed by the invention, fixation treatment is not performed on the
medicago sativa, and
mashing is directly performed, so that the content of
nutrient components in the concentrated
serous fluid are obviously increased, particularly the content of alfalfa
saponin and flavone are increased, and the extraction rate of the
medicago sativa is increased. A spraying
granulation method is used for
drying and shaping the molding material fluid, wherein the molding temperature is low, so that zero loss of effective
nutrient components in the
medicago sativa is guaranteed. The
moisture content is easy to control, and the percentage by
mass of water of the medicago sativa
solid beverage provided by the invention can be well guaranteed to be 5% or below.