The invention discloses a preparation method of
Boschniakia rossica health tea. The method comprises the following steps: selecting
Boschniakia rossica, removing impurities, cleaning the
Boschniakia rossica, boiling the Boschniakia rossica with
purified water, extracting, filtering, combining filtrates, storing filter residue for later use, subjecting the filtrate to
precipitation with ethyl
alcohol, and recovering the ethyl
alcohol, so as to obtain an extracting solution a; performing
reflux extraction on the filter residue with ethyl
alcohol, recovering the ethyl alcohol, so as to obtain an extracting solution b, boiling hawthorn and Chinese date with
purified water, extracting and filtering, so as to obtain an extracting solution c, combining the extracting solution a, the extracting solution b and the extracting solution c, concentrating under reduced pressure the combined extracting solution, so as to obtain an extract, freeze-
drying the extract, so as to obtain
powder semi-finished products, adding
citric acid,
stevioside and honey into the semi-finished products, and rapidly mixing and
drying, so as to obtain finished products. The Boschniakia rossica health tea prepared through the method has good health efficacies of
fatigue resistance, anoxia resistance, nourishing, tonifying qi,
spleen and
kidney, improving the
immunity of the
organism and the like, is sour, sweet and tasty, does not have astringency of Boschniakia rossica, and is suitable for customers in all
age groups.