Belonging to the field of traditional Chinese medicines, the invention particularly relates to a Chinese medicinal composition treating a duck Tembusu virus. The Chinese medicinal composition is prepared from the following raw materials by weight: 45g of Schizonepeta, 30g of radix sileris, 25g of notopterygium roots, 25g of radix angelicae biseratae, 30g of radix bupleuri, 25g of Radix Peucedani, 30g of fructus aurantii, 45g of Poria cocos, 30g of Platycodon grandiflorum, 25g of Ligusticum wallichii, 15g of liquorice, 15g of mint, 30-50g of Venenum Bufonis, 40-80g of radix isatidis, 50-100g of folium artemisiae argyi, 30-50g of Polygonum multiflorum, 40-80g of hawthorn, and 40-80g of dried tangerine peel. The Chinese medicinal composition provided in the invention has very good efficacy on poultry egg laying decrease, inappetence, depression and diarrhea caused by the duck Tembusu virus, an influenza virus and an egg drop syndrome virus, and especially has significant efficacy on sudden egg drop syndrome caused by duck Tembusu virus infection.