The invention discloses a multi-protein full-price pig formula feed, as well as a preparation method and an application thereof. The multi-protein full-price pig formula feed comprises raw materials and auxiliary materials and is characterized by comprising the following components by weight: 560-590 parts of corn, 55-65 parts of wheat middling, 100-120 parts of bean pulp, 55-65 parts of cottonseed meal, 35-45 parts of wheat DDGS (distillers dried grains with soluble), 6-10 parts of calcium hydrophosphate, 12-15 parts of calcium carbonate, 15-20 parts of zeolite powder, 2.8-3.5 parts of salt, 1.0-1.2 parts of lysine, and 95-110 parts of rice bran meal, wherein the crude protein percentages (CP%) of the raw materials are 7-10 of corn, 12-15 of wheat middling, 42-46 of bean pulp, 40-42 of cottonseed meal, 36-40 of wheat DDGS, and 16-20 of rice bran meal according to the requirements; the auxiliary materials are 1.8-2.2 parts of baking soda, 0.1-0.3 part of monosodium glutamate, 0.45-0.55 part of milk essence, 0.45-0.55 part of mildew preventive, 0.18-0.22 part of an antioxidant, 0.5-1.0 part of 10% bacitracin zinc, 0.4-0.6 part of 50% choline chloride, and 0.15-0.25 part of pig multi-vitamin. The daily gain of a growing-finishing pig is effectively increased, the pig grows faster and is slaughtered in advance, the feed consumption is low, the feeding coefficient is low, and the culture benefit of a pig farm is greatly increased.