The invention discloses a flowers healthcare tea and a preparation method thereof. The healthcare tea is composed of the following raw materials in parts by weight: 38 to 45 parts of glutinous rice flour, 13 to 15 parts of small chrysanthemum, 10 to 12 parts of calendula, 3 to 4 parts of watermelon peel, 20 to 25 parts of honeysuckle flower, 1 to 3 parts of licorice, 2 to 4 parts of obscured homalomena rhizome, 4 to 6 parts of elsholtzia, 3 to 5 parts of pitaya flower, 1 to 3 parts of plumeria rubra, 4 to 5 parts of albizia bark, 2 to 3 parts of cacumen biotae, 7 to 8 parts of loquat leaf, 4 to 6 parts of jasmine, 1 to 3 parts of tulip, and 10 to 15 parts of composite nutrition powder. The flowers healthcare tea is prepared from a plurality of kinds of flowers, has a delicate fragrance and a fresh taste, has the functions of clearing heat, removing toxicity, and also has the functions of invigorating the spleen, promoting the appetite, regulating the qi and middle warmer, helping digestion, and removing food retention. The bitterness of traditional Chinese herbals is eliminated. The healthcare tea has the effects of clearing heat, removing toxicity, reducing blood fat, reducing cholesterol, promoting digestion, promoting urination, promoting metabolism, and strengthening the immunity.