A composition of Bacillus licheniformis and traditional Chinese medicine polysaccharides and its preparations widely used in the field of microbial technology, including Bacillus licheniformis, Chinese medicine polysaccharides, and auxiliary materials. The mass ratio of the bacteria powder to the Chinese herbal medicine extract is 1:1.25‑25, and the Chinese medicine polysaccharide is one of Lycium barbarum polysaccharide, Lentinan polysaccharide, Astragalus polysaccharide, Codonopsis polysaccharide and Acanthopanax polysaccharide; the polysaccharide content in the Chinese medicine polysaccharide is 70 %‑95%; under aerobic and anaerobic conditions, each traditional Chinese medicine polysaccharide has a proliferation effect on Bacillus licheniformis, and the multiplication effect of each traditional Chinese medicine polysaccharide on Bacillus licheniformis is related to the amount added in the seed medium; The composition is prepared as an oral preparation, and is prepared as a common tablet. The Bacillus licheniformis and traditional Chinese medicine polysaccharide composition of the invention can promote the significant proliferation of Bacillus licheniformis under both aerobic and anaerobic conditions, enhance its ability to restore the balance of intestinal flora, and rapidly improve the resistance of intestinal colonization. The composition is effective in treating diarrhea, etc. The onset of intestinal diseases is faster and the course of treatment is shorter.