The invention discloses special feed for breeding deer and a preparation method of the special feed. The special feed is prepared from the following raw materials in parts by weight: 60-80 parts of corn flour, 30-40 parts of soybean meal, 15-25 parts of wheat bran, 10-15 parts of sugar beet pulp, 8-12 parts of peanut shells, 5-10 parts of bagasse, 5-10 parts of oak leaves, 4-8 parts of achnatherum splendens, 3-6 parts of modified sepiolite powder, 2-3 parts of stone powder, 1-2 parts of shell powder, 3-5 parts of semen litchi powder, 2-3 parts of grape seed powder, 1-3 parts of calcium hydrogen phosphate, 0.4-0.6 part of salt, 0.3-0.4 part of baking soda, 0.5-1 part of premix, 2-3 parts of broad bean shells, 3-4 parts of cowpea leaves, 1-2 parts of sunflower faceplates, 2-3 parts of angelica, 1-3 parts of muskmelon base, 2-3 parts of longan shells, 1-2 parts of hawthorn leaves, 3-4 parts of caulis spatholobi, 1-2 parts of euphorbia helioscopia and 2-3 parts of pomegranate skin. For the special feed, roughage, concentrate and Chinese medicine additives are reasonably matched, so that various nutrients needed for the growth of the deer can be ensured, the value of health care is also provided, the immunity of the deer is improved, the disease resistance of the deer is enhanced, and thus the growth speed and survival rate of the deer are increased.