The invention relates to the technical field of compound functional beverage, in particular to a preparation method of medicinal and edible plant compound functional beverage. The preparation method comprises the following steps: decocting jasmine, fructus cannabis, rhizoma polygonati, radix angelicae, raspberry, cassia seed, medlar, chrysanthemum, lalang grass rhizome, lotus seed, dandelion, radish seed, houttuynia cordata, platycodon grandiflorum, poria and Chinese yam according to a specific proportion into filtrates respectively, recycling an organic solvent, concentrating into an extract, drying under reduced pressure, crushing, granulating and packaging to form compound functional beverage granules. Compared with the prior art, the medicinal and edible plant compound functional beverage has the advantages as follows: formulas and the preparation method of the medicinal and edible plant compound functional beverage are designed, different formula combinations of the medicinal and edible plant compound functional beverage can be provided according to different current body conditions of drinkers, and the different formula combinations have rising-falling conditioning and tonifying efficacy on the liver, the heart, the spleen, the lung and the kidney of a human body respectively and have detoxifying effects by soothing and protecting the liver, cooling blood, strengthening the spleen, moistening the lung, removing phlegm, tonifying the kidney and promoting urination respectively; moreover, the medicinal and edible plant compound functional beverage is suitable for daily drinking.