The invention belongs to the technical field of preparation of compositions for improving
immunity, and particularly relates to a composition for improving
immunity as well as a preparation method and application thereof. The composition is prepared from the following raw materials in parts by weight: 30 to 40 parts of a
codonopsis pilosula extract, 15 to 20 parts of an
astragalus membranaceus extract, 8 to 10 parts of a
donkey-hide
gelatin extract, 4 to 8 parts of a radix puerariae extract, 10 to 12 parts of a
polygonum multiflorum extract, 5 to 8 parts of a radix rehmanniae extract, 2 to 6 parts of a
dendrobium nobile extract, 2 to 4 parts of a nightshade extract, 3 to 5 parts of a liquorice extract and 8 to 10 parts of honey. According to the invention, the
codonopsis pilosula extract, the
astragalus membranaceus extract, the
donkey-hide
gelatin extract, the radix puerariae extract, the
polygonum multiflorum extract, the radix rehmanniae extract, the
dendrobium nobile extract, the nightshade extract, the liquorice extract and the honey are uniformly mixed, and the natural
plant extracts are adopted to prepare the product, such that the
side effect after the administration is substantially reduced, and the
immunity can be improved and the
human health can be promoted after the administration.