The invention discloses a Chinese herbal medicine premixed agent for curing swine high fever, which takes raw materials of traditional Chinese medicine such as astragalus root, codonopsis pilosula, honeysuckle flower, weeping forsythia, radix isatidis, folium isatidis, echinacea purpurea root, cicada shell, secretio bufonis, borneo camphor, vitamin C, enzymatic probiotics (licorice root, and medicated leaven), and garlicin, and the medicine is made into fine powder (200 orders) and is evenly mixed, 0.5 kilogram of the premixed agent is added to 100 kilograms of fodder ( basic daily grains) when in use. After the fodder is eaten by a pig, digestion and absorption of a pig can be advanced, appetite can be simulated, and growing speed can be increased, and daily weight gain reaches 1.81%, and the consumption of the fodder is reduced by 14%. The invention can play a role of health care, improve immune function and disease-resistant capacity of a pig, prevent and cure swine high fever reduce morbidity by 95%, and reduce death rate by 98%. And the invention has the advantages of extensive raw material source, low cost, and safety and innocuity, and does not generate drug resistance, which is an ideal Chinese herbal medicine premix substitution, and meat does not contain residual medicine.