The invention relates to pig concentrated feed which does not contain antibiotic and hormone. The pig concentrated feed is mainly prepared from the following materials: protein materials, calcium hydrogen phosphate, calcium carbonate, iodinated salt, amino acid, zinc sulfate, sodium selenite, magnesium sulfate and the like. As the pig concentrated feed does not contain the materials such as the antibiotic, the hormone and the like and is added with a proper amount of microelements, the pig concentrated feed can supplement nutrient components of conventional feed, prevent feed quality degradation, improve palatability of the feed, improve the feed utilization rate for pigs, improve disease resistance of the pigs, prompt normal development and quick growth of the pigs, and improve the growth quality of the pigs; and after the pig concentrated feed which serves as an additive is prepared into complete feed, residue of mineral elements in pork and livers of the pigs (the component content is controlled to be within the safety value during the fattening period) is reduced, edible safety of pork products is ensured, the feed cost is lowered, and the environmental pollution of swine waste is reduced on the premise of not influencing growth performance of the pigs.