The invention relates to the technical field of health caring, in particular to a preparation method of oral liquid for treating diabetes. Firstly,
ligularia intermedia and Chinese aralis are cleanlycleaned;
polysaccharide substances and total
saponin substances in the
ligularia intermedia and the Chinese aralis can effectively prevent the continuous rise of the
plasma glucose level; the ultra
microstructure of the
kidney is maintained; the substrate membrane thickening is avoided, so that the
filtration function of the glomerulus is normal; through the joint
fermentation of lactobacilli andsaccharomycetes, ingredients for maintaining the blood glucose are converted into beneficial substances capable of being easily digested and absorbed by the
human body; the molecular weight of the effective
medicine ingredients is reduced; new
microbial metabolism secondary products and other probiotics are generated; under the condition of co-existence of the
saccharomycetes and the lactobacilli,
lactic acid is converted into
lactose; the
lactose is decomposed to be converted into
galactose; the synergistic effect is achieved; the content of ingredients, with the blood glucose reduction effect, in the fermented
ligularia intermedia and Chinese aralis is improved; the diabetes is better treated in an auxiliary way.