The invention relates to the field of preparation of veterinary herbal medicine, provides traditional Chinese medicine for treating animal fever and a preparation method, and particularly relates to the traditional Chinese medicine for treating fever of pigs, chickens, cattles, goats, horses, dogs and rabbits during an initial period, and the preparation method. The invention has the beneficial effects that the traditional Chinese medicine for treating the animal fever is prepared from the following raw materials in parts by weight: 5 to 35 parts of honeysuckle flower, 5 to 35 parts of fructusforsythiae, 5 to 35 parts of radix bupleuri, 5 to 35 parts of rhizoma anemarrhenae, 5 to 35 parts of lightyellow sophora root, 5 to 35 parts of medulla tetrapanacis, 5 to 35 parts of radix platycodi,5 to 35 parts of radix paeoniae alba, 2 to 15 parts of liquorice root and accessory, wherein the accessory is prepared from dextrin and saccharose. The traditional Chinese medicine provided by the invention is guided by pharmaceutical theory of the veterinary herbal medicine and is mainly prepared aiming at flu fever of poultry and livestock; the traditional Chinese medicine is capable of nourishing blood, protecting liver and preventing liver damage caused by fever through the radix paeoniae alba, tonifying middle-jiao and benefiting qi through the liquorice root, clearing heat, detoxifying,diminishing inflammation and purging intense heat through the matching of the honeysuckle flower, the fructus forsythiae, the radix bupleuri, the rhizoma anemarrhenae, the lightyellow sophora root, medulla tetrapanacis, the radix platycodi and the like and purposefully relieving a series of symptoms of dizziness, nasal obstruction, coughing, throat discomfort and the like caused by the fever, sothat the purpose of rapidly treating the fever on the basis of protecting the body can be achieved.