The invention provides a Chinese medicinal prescription, which comprises Chinese traditional natural herbal medicaments serving as raw materials, has no toxic or side effect, good taste and convenience for taking, is prepared by repeated verifications in clinical tests, and is in accordance with traditional Chinese theory. According to the Chinese medicinal prescription for treating mammary glandinflammation and a preparation method thereof, red-rooted salvia root, apricot kernel, pawpaw, corn stigma and ricepaper pith serving as monarch drugs have the functions of clearing heat and removingtoxicity, diminishing swelling and discharging pus, promoting blood circulation to remove blood stasis and relieve pain; red beans, human placenta, peruvian groundcherry herb, fistular onion stalk and adiantum caudatum serving as ministerial drugs have the functions of circulating vital energy circulation and resolving stasis, and eliminating milk accumulated in mammary gland; dandelion, Chinese date, potentilla parvifolia fisch, cowherb seed, viscum diospyrosicolum, silkworm larva, bolbostemma paniculatum, caulis clematidis armandii, wartwort and uniflower swisscentaury root assist the monarch drugs and the ministerial drugs to treat acute mammary gland inflammation. The drugs of the Chinese medicinal prescription are compatible, can directly achieve the focus with functions of clearing heat and cooling blood, restoring menstrual flow to eject milk, and diminishing inflammation and removing pus, and can be used for healing mammary gland inflammation.