The invention belongs to the technical field of pig feed production, and in particular relates to a pig feed for promoting the oestrus of sows and improving the birth rate of piglets. The feed has the advantages that the sows are rapid in oestrus, short in period and multiple in piglets. The pig feed is composed of a conventional feed which promotes the oestrus of the sows and improves the birth rate of the piglets and Chinese herbal medicines, wherein the conventional feed consists of the raw materials of corns, bean pulp, extruded soybeans, import fish meal, corn gluten meal, peanut meal, bran, soybean oil, calcium hydrophosphate, mountain flour, boar multi-vitamins, multiple minerals, lysine, choline chloride and cysteamine; the Chinese herbal medicines consist of the raw materials of herba epimedii, actinolite, leonurus, Chinese angelica, semen cuscutae and nutgrass, and in the conventional feed, the addition amount of the Chinese herbal medicines accounts for 2.0-4.0% of the total amount of the feed. According to the feed, the medicine properties of the Chinese herbal medicines are utilized on the basis that the formula of the main ingredients is optimized, thereby improving the reproduction function of the sows, promoting the early oestrus of the sows and the birth of the multiple piglets, improving the reproduction capacity and the production property of the sows.