The invention discloses a brewing method of Codonopsis lanceolata health-care vinegar. According to the invention, radix codonopsis lanceolata which has effects of replenishing the vital essence, removing heat, moistening lung, reducing phlegm, tonifying stomach and promoting fluid is used along with glutinous rice which has effects of supplementing the center, boosting qi, invigorating spleen and nourishing stomach, pueraria root residue which has effects of relieving exterior syndrome, bringing down a fever and promoting the production of body fluid to quench thirst as well as sweet potato. The above raw materials undergo processes of pretreatment, mixing, alcoholic fermentation, acetic acid fermentation, aging, vinegar spraying, blending, sterilization, canning and the like so as to prepare the Codonopsis lanceolata health-care vinegar. According to the invention, nutrition and health components of Codonopsis lanceolata are dissolved in the vinegar. The finished product is brown red in color, is sour and sweet, is mellow and tasty, has effects of replenishing the vital essence, removing heat, moistening lung, reducing phlegm, invigorating spleen and nourishing the stomach, can be used as a daily seasoning, and also can be used as an oral health-care liquid for special crowds. According to the invention, pueraria root residue replaces traditional rice husk to be used as a filler. On one hand, nutrition and health-care components in pueraria root residue are fully utilized; and on the other hand, pueraria root residue, as kudzuvine root starch processing waste, is fully utilized.