Compound echinacea purpurea preparation and preparation method and application thereof

The invention discloses a compound echinacea purpurea preparation. The dose ratio of an echinacea purpurea extract as an effective component to lysozyme is (4-1):1, the dosage of the echinacea purpurea extract and the lysozyme is 20% in total, and the ajudvants contains 64% of saccharose and 16% of dextrin. The echinacea purpurea extract selected by the invention is obtained by extracting echinacea purpurea medicinal material by alkaline ethanol solution and lysozyme for two times, wherein the content of polysaccharide is not less than 21.5%, the content of polyphenol is not less than 8.10% and the content of chicoric acid is not less than 5.00%. The compound preparation provided by the invention has the effects of improving animal immunity, antibiosis and anti-virus, thereby being capable of being taken as the medicine for preventing and treating the animal diseases, in particular to the chicken diseases caused by escherichia coli infections.