The invention discloses a feed for cow. The feed is composed of wheat bran, peanut straw, black soya bean, fish meal, corn, soybean meal, plant oil, sorghum, radix codonopsis, radix astragali and the like. The feed for cow has high nutritional value, has efficacy of supplementing the center and boosting qi and strengthening spleen and tonifying lung, has effects of boosting immunity, dilating blood vessels, decreasing blood pressure, improving microcirculation, enhancing hematopoietic function and the like, and can be used for effectively increasing nutrients for cow. Meanwhile, by addition of part of lactation promoting components, milking rate of cow can be raised, and resistance of cow can be enhanced such that cow is not easy to get sick. Thus, quality of milk is raised.