The invention discloses an additive premix feed for lactating sows, and a preparation method and application of the additive premix feed. The feed is prepared from the following raw materials in parts by weight: 1.2-1.5 parts of safflowers, 6-10 parts of herb of motherwort, 4-6 parts of angelica, 4-8 parts of houttuynia, 5-10 parts of astragalus root, 2-4 parts of hawthorn fruits, 4-8 parts of typhae pollen, 3-6 parts of ginger, 12-18 parts of brown sugar, 4-8 parts of yellow wine and 35-45 parts of soybean oil. The additive premix feed for the lactating sows can assist sows in improving appetite, promoting digestion, protecting liver to protect bile, promoting blood circulation, diminishing inflammation and moistening lung, can assist quick recovery of postpartum uterus, genital tract and body condition and can significantly improve lactating quantity of the sows, and milk of the sows can enhance the immunity of piglets so as to increase the growth speed of the piglets. The feed is sufficient in raw material source, high in cost performance, convenient to use and good in effect.