Traditional Chinese medicine immunopotentiator and application thereof in preparing swine epidemic diarrhea inactivated vaccine

The invention belongs to the technical field of immune drugs, and discloses a traditional Chinese medicine immunopotentiator. The traditional Chinese medicine immunopotentiator is composed of sijunzidecoction total polysaccharides and sijunzi decoction total saponins, and the sijunzi decoction total polysaccharides and the sijunzi decoction total saponins account for 50% of the total weight of the immunopotentiator respectively. A swine epidemic diarrhea inactivated vaccine prepared from the traditional Chinese medicine immunopotentiator can achieve the immune enhancing effect of the total polysaccharides and the total saponins in a sijunzi decoction, and also has a certain recovery effect on the damage to the pig immune system. Potency test results show that compared with commercial vaccines, the swine epidemic diarrhea inactivated vaccine can reach a high antibody protection level one month after immunization, the antibody titer is maintained for a long time, the high-level state ismaintained continuously,