The invention discloses a probiotics syrup capable of improving immunity. Lactobacillus acidophilus, lactobacillus casei, lactobacillus jensenii, lactobacillus plantarum, bifidobacterium longum, bifidobacterium breve, oval bifidobacterium, bifidobacterium bifidum, bifidobacterium catenulatum, bifidobacterium, bacillus acidi lactici, bacterium lacticum, lactic acid bacteria, filiform saccharomycetes, actinomycetes, bifidobacterium thermophilum, gram-positive cocci, streptococcus, galactococcus, intermediary streptococcus, acetobacter aceti, protease, lipase, amylase, cellulose, hemicellulase, pectinase and xylanase are adopted and mixed with traditional Chinese medicine extracts to prepare the probiotics syrup capable of improving immunity. The prepared probiotics syrup can resist pathogenic bacteria, is helpful for cancer treatment and prevention, and can suppress tumor growth and allergic diseases, reduce serum cholesterol and prevent osteoporosis. The probiotics syrup has the advantages of being capable of becoming effective quickly, obvious in effect, high in safety and the like.