The invention provides a method for preparing asparagus health drink, which is rich in nutrients and has the effects of lowering blood pressure, resisting oxidation, delaying aging, invigorating spleen, moistening lung, beautifying, raising spirit and refreshing. The drink product is brown, has pleasant fragrance, and sweet and sour taste. The invention has the following advantages: 1, a main component of an asparagus extract is prepared by two-step drying and ultrasonic wall breaking assisted enzymatic hydrolysis, so as to effectively retain active ingredients of asparagus and give the drink health functions; 2, a two-step drying method is employed to prepare an asparagus dry powder, so that the asparagus can be stored for a long time for backup, and the energy losses due to long-term storage of fresh asparagus or waste decay due to improper storage can be avoided; 3, root of kudzu vine powder is added in the fruit and vegetable raw materials for compatibility, and can be used as a suspending agent to hold the state of the drink; in addition, the root of kudzu vine powder also has effects of relieving hangover, lowering lipid and blood pressure, reducing fire, clearing heat, detoxifying, beautifying and building the body. The drink of the present invention is particularly suitable for female consumers and middle-aged consumers.