This invention provides a children's eye-protecting compound fermented beverage and its preparation method, comprising the following steps: Adding wolfberry, Chinese yam, pitted red dates, Hangzhou white chrysanthemum, and
honeysuckle to
purified water, extracting, filtering to remove residue, and obtaining a medicinal and edible extract; adding blueberry concentrate, black wolfberry extract, mulberry concentrate, raspberry concentrate,
crystalline fructose, fructooligosaccharides, galactooligosaccharides,
malic acid, and eye-protecting functional ingredients sequentially to the extract, stirring evenly to obtain a liquid; sterilizing and cooling the liquid; inoculating the sterilized and cooled liquid with *
Lactobacillus plantarum*, *
Lactobacillus rhamnosus*, and *
Lactobacillus acidophilus*, and fermenting at a constant temperature of 37°C in a sealed container for 24–36 hours until the pH stabilizes at 3.5–3.7, then terminating the
fermentation. Homogenizing and bottling. This invention, using the above-mentioned children's eye-protecting compound fermented beverage and its preparation method, has a mild formula, comprehensive eye-protecting ingredients, and undergoes deep
fermentation with probiotics, making it suitable for children over 3 years old.