The invention discloses a chicken feed for improving disease resistance and survival rate, a preparation method and a feeding method thereof. The chicken feed comprises the following raw materials: corn, soybean meal, rice bran, peanut bran, bone meal, calcium, phosphorus, magnesium and Chinese herbal medicines. The Chinese herbal medicines comprise lucid ganoderma, red dates, astragalus membranaceus, lonicera japonica, lophatherum gracile, radix isatidis, codonopsis pilosula, hedyotis hedyotidea, sculellaria barbata, alpinia japonica, medlar, gardenia jasminoides ellis, mussaenda pubescens, senecio scandens, momordica grosvenori, folium isatidis, orange peel, Shuanghuanglian, radix bupleuri, sweet wormwood, platycodon grandiflorum, liquorice and plantain herb; the raw materials are smashed into powder, and the feed is prepared through stirring, mixing and sealed fermentation; and the prepared feed is fed twice in the morning and evening. The chicken feed can effectively improve the disease resistance and survival rate of the hang chickens, enhance the immunity of chicken bodies, improve the taste of meat, and is free of toxic and harmful substance residues, environment-friendly and healthy.