The invention discloses heat-clearing and throat-nourishing buccal tablets and a preparation method thereof. Each buccal tablet comprises the following raw materials in parts by weight: 13-15 parts of licorice, 5-7 parts of phyllanthus emblica, 20-30 parts of mint, 9-11 parts of reed rhizome, 5-6 parts of schisandra chinensis, 3-5 parts of platycodon grandiflorum flower, 5-10 parts of cinnamon, 10-12 parts of jasmine, 5-7 parts of mottled bamboo root, 4-6 parts of cluster mallow fruit, 2-4 parts of rohdea japonica, 4-6 parts of corn stigma, 3-5 parts of madder, 5-7 parts of bitter gourd root, 4-6 parts of circium japonicum, 40-50 parts of maltodextrin, 2.5-3.0 parts of aspartame, 1.8-2.5 parts of ethyl cellulose and 1.0-1.5 parts of magnesium stearate. The buccal tablets are uniform in color and good in hardness; after being orally taken, the buccal tablets are strong in tea fragrance, fine in taste, cool and delicious; in addition, the buccal tablets, added with traditional Chinese medicine extracts such as the licorice, the mint and the jasmine, have certain heat-clearing and throat-nourishing effects; after the buccal tablets are taken for a long time, the effects of nourishing throat, clearing heat, stopping pain, relieving cough and diminishing swelling can be effectively achieved; particularly, a better curative effect is provided for a chronic pharyngitis patient who takes the buccal tablets for a long time.