The invention discloses a probiotic traditional Chinese medicine compound preparation for promoting lactation of sows and improving milk quality. The preparation is compounded by a traditional Chinese medicine compound and probiotics. The traditional Chinese medicine compound is prepared from the following raw materials in parts by weight: 0.5-1.5 parts of angel yeast, 5-15 parts of fructo-oligosaccharide, 1-4 parts of vitamin E, 5-15 parts of cowherb seeds, 1-3 parts of tetrapanax papyriferus, 4-6 parts of a complex enzyme preparation, 1-3 parts of soy isoflavone, 45-50 parts of medical stone powder and 17-25 parts of corn starch. The probiotics are mixed bacterial powder of bacillus subtilis and lactobacillus plantarum. In the probiotic traditional Chinese medicine compound preparation, the viable count of the bacillus subtilis is greater than or equal to 2x10<8>cfu/g and the viable count of the lactobacillus plantarum is greater than or equal to 3x10<8>cfu/g. According to the probiotic traditional Chinese medicine compound preparation, the probiotics and the traditional Chinese medicines are compounded, so that the expression level of prolactin can be improved, the lactation of sows is promoted, the ratio of feed to weight is reduced, and the feed utilization ratio is improved.