Veterinary plague-eliminating and toxin-vanquishing powder as well as preparation method and application thereof

The invention provides veterinary plague-eliminating and toxin-vanquishing powder, which is prepared from the following components in parts by weight: 7 to 15 parts of raw radix rehmanniae, 15 to 25 parts of radix astragali seu hedysari, 7 to 15 parts of radix scutellariae, 8 to 15 parts of stir-fried radix et rhizoma rhei, 2 to 9 parts of liquorice root, 2 to 10 parts of herba lophatheri, 2 to 8 parts of radix salviae miltiorrhizae, 7 to 15 parts of herba taraxaci, 7 to 15 parts of gypsum, 2 to 10 parts of cortex moutan, 2 to 10 parts of herba menthae and 2 to 10 parts of fructus arctii. The veterinary plague-eliminating and toxin-vanquishing powder mainly comprises Chinese herbal medicine components, is reasonable in formula and appropriate in proportion, is simple and effective compared with existing epidemic prevention and antiepidemic materials, is long in drug effect lasting period, does not have toxic or side effects, and can play an effective role in preventing and treating plague under the condition that mammals are weak; and especially, the problem that female animals are easily infected with diseases due to low immunity during puerperium is relieved.