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.