Natural plant feed additive and preparing method thereof

The invention relates to the field of livestock breeding, in particular to a natural plant feed additive. The natural plant feed additive is prepared from, by mass, 4-6 parts of pericarpium citri reticulatae, 3-5 parts of fleece flower roots, 5-7 parts of cortex fraxini, 3-5 parts of radix astragali, 2-4 parts of radix codonopsis, 4-6 parts of folium perillae, 3-5 parts of cyrtomium rhizomes, 5-7 parts of folium artemisiae argyi and 2-4 parts of lucid ganoderma. According to the feed additive, all the medicine materials are weighed according to the formula, dried, mixed and ground, and plant medicine materials pass through a 40-mesh screen, and are mixed evenly, separately packaged, sealed and preserved for use; the feed additive is added for feeding by 4% of feed. The natural plant feed additive is applied to raise animals, the quality of the animal food for the human is improved, the quality and flavors of eggs, milk and meat are improved, animal products are made safe and good in taste, and the old concept that people think that the taste of livestock and poultry products raised with feed is poor is changed. Meanwhile, the green concept of health and environment friendliness is reflected, and the humanistic feelings of returning to the original nature and returning to the nature are featured.