The invention provides a method for preparing a bilberry health drink, which comprises the following raw materials: bilberry, dendrobium, ginger, schisandra, stevia, wolfberry, mango, dragon fruit, seabuckthorn fruit, guava, carrot, sapodilla, grape, Kiwi, prunes, almonds, corn, oats, mung beans, green tea. The bilberry health drink contains polysaccharides, flavonoids, triterpenoids, saponins, polypeptides and vitamins and other functional and nutritional components. It can enhance and regulate human immune function, protect liver and eyesight, regulate intestinal flora, anti-aging, skin care and beauty, eliminate fatigue, prevent cardiovascular and cerebrovascular diseases and other functions.