The invention provides a Chinese herbal medicine additive for expelling parasites for ostriches in a ceased period and a preparation method and application of the Chinese herbal medicine additive. The additive is prepared from the following raw materials in parts by weight: 5-15 parts of common carpesium fruits, 4-12 parts of betel nuts, 4-12 parts of cyrtomium fortunei, 3-9 parts of stone-like omphalia, 3-9 parts of fructus forsythiae, 3-9 parts of artemisia apiacea, 3-9 parts of fructus cnidii, 2-8 parts of astragalus membranaceus, 2-8 parts of carbonized sanguisorba roots, 2-8 parts of sophocarpidine, 2-8 parts of roots of Chinese pulsatilla, 2-8 parts of allicin, 2-6 parts of honeysuckle, 2-6 parts of rheum officinale, 2-6 parts of golden cypress, 1-5 parts of radix bupleurim, 1-5 parts of malt, 1-5 parts of liquorice, 1-3 parts of hawthorn and 1-3 parts of zanthoxylum bungeanum which are smashed and uniformly mixed to obtain finished products. The Chinese herbal medicine additive which is applied to breeding ostriches in the ceased period has the multiple functions of tonifying spleen, promoting digestion, expelling parasites, clearing away heat, detoxifying and the like. The product is free of residues and side and toxic effects, can be used for effectively reducing use of antibiotic drugs, and has good economic benefit and market application prospect.