The invention discloses a cow concentrate supplement. The cow concentrate supplement comprises components in parts by mass as follows: 40-65 parts of extruded corn, 5-20 parts of extruded soybeans, 10-20 parts of wheat bran, 20-25 parts of germ cakes, 10-15 parts of bean curd residues, 5-10 parts of shrimp shells, 3-5 parts of red dates, 5-10 parts of tomato pomace, 0.1-0.3 part of vitamins, 0.01-0.05 part of potassium chloride, 0.3-0.8 part of sodium chloride, 0.5-2 parts of white granulated sugar, 0.5-1.5 parts of sodium bicarbonate, 0.01-0.05 part of bacillus natto, 0.1-0.5 part of a traditional Chinese medicine extract, 0.5-1.5 parts of calcium hydrogen phosphate and 0.5-1.5 parts of soybean oil. The cow concentrate supplement has good palatability, balanced nutrients, high disease resistance, reasonable matching of coarse and refined components, better milk producing function and low cost.