The invention discloses a laying hen feed containing a Chinese herbal medicine additive and a preparation method thereof. The Chinese herbal medicine additive comprises the following Chinese herbal medicine components: hawthorns, astragalus membranaceus, rhizoma polygonati, angelica sinensis, herba epimedii, codonopsis pilosula, curcuma aromatica, medicated leaven, folium artemisiae argyi, eucommia ulmoides, spina date seed, serissa serissoides, portulaca oleracea, glossy privet fruit, nettle, mulberries, radix polygonati officinalis, emblic leafflower fruit, cyrtomium fortune, chuan safflower, semen cassia, eclipta alba, herba cistanche, fructus kochiae, adina rubella hance, herba aristolochiae, mint, dendrobe, pine needle meal and liquorice. The additive is applied to the laying hen feed, not only can directly perform sterilization and bacteriostasis, but also can regulate the immune function of bodies, has a nonspecific antibacterial action, also cannot generate dependence, also can improve the production performance of a laying hen, improve the egg laying rate, enhance the egg quality, reduce the cholesterol content of eggs and the like, meanwhile has no side effect and drug fastness, and is an environment-friendly feed additive worthy of popularization and application.