The invention discloses a Radix Puerariae tea and a preparation method thereof. The preparation method comprises the following steps: 1, cleaning wild Radix Puerariae, and removing
skin and root; 2, cleaning and purifying Radix Puerariae
skin and Radix Puerariae root, and
drying them; 3, crushing into
powder, and stirring and mixing the power,
guar gum,
xanthan gum and a proper amount of water to uniformity; 4, allowing the obtained material to stand, and carrying out
granulation molding on the obtained material in a mixing granulator; 5, carrying out high temperature frying in a tea frying
machine; 6, cooling, and sprinkling an
aqueous solution of
vitamin C to the obtained cooled material; and 7, carrying out low temperature
vacuum drying and weighing packaging to obtain the Radix Puerariae tea. By optimizing a formula and a technology in the invention, the prepared Radix Puerariae tea which has a stable quality has the efficacies of heat clearing and
alcohol effect relieving, blood fat reducing,
blood pressure reducing,
blood sugar reducing and the like. In addition, the preparation method which treats the Radix Puerariae
skin and the Radix Puerariae root as raw materials provides technological supports for fully utilizing Radix Puerariae resources, increasing values of the Radix Puerariae tea and reducing wastes.