The invention discloses anti-influenza detoxifying capsules. The capsules are prepared from the following raw materials in part by weight: 10 to 30 parts of indigowoad leaf, 15 to 30 parts of honeysuckle flower, 10 to 30 parts of indigowoad root, 5 to 15 parts of weeping forsythia, 5 to 15 parts of male fern rhizome, 5 to 15 parts of bistort rhizome and 15 to 25 parts of red paeony root. The capsules have reasonable formula, simple compatibility and exact curative effect, are suitable for treating anemopyretic cold, are mainly used for treating and combine treatment and fitness, have the effects of clearing away heat and toxic material, dissipating the superficial and relieving sore throat and can eliminate syndromes of surface wind-heat evil, dry and sore throat, cough and the like. The invention also provides a preparation method of the anti-influenza detoxifying capsules.