The invention discloses antibiotic-free weaned suckling pig feed. The feed is prepared from, by weight, 10-18 parts of puffed soybean, 12-20 parts of peeled soybean meal, 40-60 parts of corn, 5-10 parts of high-protein whey powder, 2-5 parts of wheat bran, 6-10 parts of rice , 2-5 parts of soybean oil, 2-3 parts of glucose, 0.8-1 part of calcium lactate, 2-5 parts of glutamine, 0.1-0.5 part of edible salt, 0.8-1.5 parts of acidifier, 0.2-0.5 part of probiotic, 0.2-0.5 part of compound enzyme preparation, 0.02-0.05 part of lysozym, 0.1-0.3 part of montmorillonite, 0.1-0.5 part of trace element premix and 0.03-0.05 part of vitamin premix. The weaned suckling pig feed is balanced in amino acid, high in energy and rich in feed inducing agent and has the advantages of reduction in emission of nitrogen and phosphor into environment, high palatability and digestibility, improvement on microflora balance, promotion of intestinal mucosae development, freeness of antibiotic and improvement in anti-diarrhea ability and immunity.