Concentrated freeze-dried yolk antibody composite preparation for Newcastle disease-infectious bursal disease and preparation process thereof

The invention provides a concentrated freeze-dried yolk antibody composite preparation for Newcastle disease-infectious bursal disease, which contains the following components in part by weight: 10.0 to 99.5 parts of Newcastle disease-infectious bursal disease virus resistant yolk antibody and 0.5 to 20.0 parts of Chinese medicinal polysaccharide, wherein the Chinese medicinal polysaccharide is extracted from one or a composition of more than two of the following Chinese medicines in part by weight: 10 to 50 parts of indigowoad root, 50 to 100 parts of fresh rehmannia, 50 to 80 parts of danshen root and 30 to 50 parts of liquorice. The preparation is a freeze-dried preparation prepared by combining the components such as the Newcastle disease-infectious bursal disease virus resistant yolk antibody and the polysaccharide under the guidance of immunity engineering of Chinese medical science, is clinically used for the Newcastle disease-infectious bursal disease, has the effect of treating the Newcastle disease-infectious bursal disease virus infection, and excites the immunity and disease resistance of organisms; and simultaneously, the polysaccharide component in the preparation has powerful protection effect on the yolk antibody.