The invention discloses concentrated feed for piglets, belonging to the field of feed for piglets. A premix comprises lactose, glucose, calcium powder, choline chloride, 98.5% lysine, methionine, threonine, a flavouring agent, ethoxyquin, an acidifier, vitamins for suckling pigs, microelements for the suckling pigs, sesame oil cake, folium ginkgo powder, chestnut kernel powder, peanut kernel powder, sweet potato powder, sweet potato vine, sweet potato leaf powder, dried potato powder, polygonum aviculare, Asia plantain, millet, broomcorn and liquorice. The invention further provides a processing method of the concentrated feed. The processing method comprises the following steps: (1) preparing the premix; and (2) preparing the feed. The concentrated feed comprises multiple components and is rich in nutrients, meets the requirement of the growth of the piglets, is good in palatability to excite the growth potential, and facilitates the growth of the piglets; the immunity of the piglets can be improved, and the diarrhea rate and the morbidity death rate are reduced; the digestive absorption of the piglets to the feed is promoted, the daily gain of the piglets is increased, the feed conversion ratio of the feed is remarkably increased, the production cost is lowered, the cultivating benefit is increased, and the growth speed is ensured.