An enzyme capable of improving the reproductive performance of breeding pigs, made of the following raw materials: 35-40 parts of plant enzyme stock solution, 10-15 parts of active traditional Chinese medicine preparation, 0.4-1.0 parts of Lactobacillus acidophilus, 0.1-0.5 parts of Saccharomyces cerevisiae , 15-20 parts of energy components; after deep fermentation, the plant raw materials of the present invention are rich in various amino acids, multi-vitamins, plant polysaccharides, nucleic acid substances, mycoproteins, minerals and other nutrients, and have the ability to regulate the metabolism of breeding pig mothers, Improve the sow's physique, improve the body's immunity and disease resistance. The present invention is rich in VE, VA, VB family vitamins, β-carotene, organic selenium, and multiple effective active ingredients for inoculating enzymes and promoting reproductive performance, which can significantly improve the conception rate of sows, the average litter rate and Piglet survival rate, and promote sow milk secretion and milk quality. It can be widely used as a nutrient to improve the reproductive performance of breeding pigs.