The invention discloses an antibiotic-free complete feed for pigs. The antibiotic-free complete feed is prepared from the following raw materials in percentage by weight of 60-80% of corn, 10-25% of peeled soybean meal, 0.3-1% of soybean oil, 6-10% of wheat bran, 0.9-1.3% of calcium hydrogen phosphate, 0.6-0.9% of stone powder, 0.4-0.7% of lysine, 0.25-0.4% of pre-diluted tryptophan, 0.25-0.45% ofpre-diluted threonine, 0.3-0.45% of sodium chloride, 0.1-0.3% of pre-diluted tryptophan, 0.1-0.5% of multiple minerals, 0.1-0.3% of multiple vitamins, and 0-0.8% of benzoic acid. The multiple vitamins contain one or more of plant essence oil, a macleaya cordata extract and a purple perilla extract. The antibiotic-free complete feed for pigs provided by the invention is suitable for pigs of different growth stages, has the characteristics of being comprehensive in nutrients, easy to digest, easy to absorb and the like, can obviously reduce the feed conversion rate, and can improve the diarrhearesistance.