The invention relates to novel application of a medical composition in preparing a medicine for treating viral influenza. The formula consists of the following compositions: 630 portions of infructescence of platycarya strobilacea sieb.et zucc, 630 portions of selfheal, 251 portions of wild chrysanthemum flower, 420 portions of radix astragali, 251 portions of flos magnolia, 251 portions of radix sileris, 251 portions of angelica dahurica, 251 portions of liquorice and 251 portions of rhizoma ligustici wallichii. The preparation formulations comprise injection, pills, granules, hard capsules, soft capsules, tablets, dripping pills or orally taken liquid preparation. The invention aims to provide the novel treating application for the medical composition, widen the clinical application scope of the medical composition, and avoid waste of good medicine resources.