The invention relates to a health drink and a preparation method thereof. The health drink is prepared from corniculate lotus roots, all-grass of crinite uraria, Euchresta tubulosa Dunn, roots of hancock Indigo, puffballs, herb of Ciliate Bugle, swamp mahogany leaves, stephanin herbacea Gagnep., thlaspi arvense L., herb of Tibet lancea, centaury, roots of Sampsonii hance, amur silvergrass, heynea roots, wild buckwheat rhizome, leaves of roughhairflower storax, fruit of common cashew, roots or leaves of dockleaf golderray, delavay parnassia herb, subopposite milkwort herb, syzygium jambos leaves, Chinese pholidota herb, conical silene herb, roots of omei mountain kudzuvine, half-capitate hemiboea herb, malt sugar, oligosaccharide and citric acid. The health drink has the efficacy of clearing away heat and toxicity, relieving swelling and pain, clearing heat, relieving sore throat and nourishing yin to moisten dryness and has advantages of good clinic efficacy and low recurrence rate.