The invention discloses a piglet feed as well as a preparation method and application thereof. The piglet feed is prepared from the following raw materials in parts by weight: 30-45 parts of maize meal, 10-20 parts of wheat middings, 5-20 parts of soybean meal, 0.2-0.5 part of stable salt, 5-15 parts of distiller's grains, 0.4-1.5 parts of bone meal, 10-33 parts of various minerals for piglets, 2-10 parts of various vitamins for piglets, 0.2-0.9 part of shell powder, 2-4 parts of haws, 1-2 parts of fructus aurantii, 10-20 parts of garlic powder, 1-3 parts of a flavoring agent, 10-15 parts of dried flos sophorae, 0.05-0.1 part of an antioxidant, 10-25 parts of sweet potato powder, 1-2 parts of dendrobium nobile, 15-20 parts of apricot flesh, 9-15 parts of lysine, 8-12 parts of a feeding attractant, 10-20 parts of fructus corni and 2-6 parts of compound Chinese herbs. Through addition of the compound Chinese herbs, the digestion function of a piglet can be further perfected, the disease resistance of the piglet can be strengthened, enteritis and diarrhea can be prevented, and the survival rate can be improved; the Chinese herbal additives are rich in various nutrients and effective active ingredients, so that the piglet feed can promote animal gastrointestinal peristalsis, promote secretion in the digestive gland, stabilize the balance of a micro-ecological environment in the digestive tract, and promote growth.