The invention discloses a pig feed capable of effectively improving meat quality, the pig feed comprises the following components: corn, soybean meal, corn DDGS, corn protein powder, stone powder, calcium hydrophosphate, L-lysine, DL-methionine, L-threonine, lactic acid bacteria, bacillus subtilis, prebiotics, probiotics, a compound enzyme preparation, plant essential oil, compound vitamins and compound trace elements, and the invention discloses a preparation method of the pig feed. The invention relates to the technical field of pig feeds, and particularly provides a pig feed capable of effectively improving meat quality and a preparation method thereof. An antibiotic-free technology is adopted, lactic acid bacteria, bacillus subtilis, prebiotics, probiotics, a compound enzyme preparation and plant essential oil are added, and the pig feed contains rich linoleic acid, full-organic microelements and balanced digestible amino acids; the feed can promote nutrition and health of intestinal tracts, and is good in palatability, good in digestion and absorption, strong in diarrhea control capability, high in digestibility, high in nutrition and high in positioning, so that meat quality and meat color are improved, the cholesterol content of meat is reduced, and the value of meat products is improved.