The invention provides a preparation technology of a liver-protecting and hangover-alleviating product, and relates to the field of
traditional Chinese medicine preparations, and the preparation technology comprises the following steps: washing radix puerariae and
hovenia dulcis thunb,
slicing or segmenting to obtain treated raw materials; respectively decocting and concentrating the treated kudzuvine root
raw material and the
hovenia dulcis thunb
raw material, and respectively carrying out
spray drying on the kudzuvine root concentrated solution and the
hovenia dulcis thunb concentrated solution to prepare powdery raw materials; mixing the obtained powdery
raw material with other raw materials for preparing the liver-protecting and
alcohol-dispelling product according to a raw material preparation ratio to obtain a mixture; tabletting the mixture; or dissolving through a
solvent after mixing, filtering after dissolving, and taking the filtered liquid; and performing post-treatment on the treated semi-finished product to obtain a finished product. Vacuum concentration is adopted; and carrying out concentration analysis test before the process of carrying out batch concentration on the decoction of the current group to determine set vacuum concentration process parameters of the decoction of the current group. The matching precision of parameters and materials is improved, quality fluctuation among batches is reduced, and product quality consistency is guaranteed.