The invention provides a preparation method of intelligence-benefiting health tea. The preparation method comprises the following steps: 1, cleaning fresh rhizoma polygonati, cooking in boiling water for 1 minute, and airing till the
dryness is 90%; 2, uniformly mixing the rhizoma polygonati obtained in the step 1 with yellow rice
wine according to a weight ratio of 5: 1, covering and moistening for 12 hours till the yellow rice
wine is completely absorbed, stewing above water for 8 hours, and airing; 3, uniformly mixing the rhizoma polygonati obtained in the step 2 with yellow rice
wine according to a weight ratio of 5: 1, covering and moistening for 12 hours till the yellow rice wine is completely absorbed, stewing above water for 8 hours, and airing; 4, uniformly mixing the rhizoma polygonati obtained in the step 3 with yellow rice wine according to a weight ratio of 5: 1, covering and moistening for 12 hours till the yellow rice wine is completely absorbed, stewing above water for 8 hours, airing, and adding 100g of refined honey; and 5, airing the rhizoma polygonati obtained in the step 4 till the
dryness is 50%,
cutting into small pieces, and airing. The intelligence-benefiting health tea can nourish the liver, tonify the
spleen, moisten the
lung and promote
secretion of
saliva or
body fluid, and has the efficacies of preventing cardiovascular diseases, resisting cancers, resisting aging and the like.