The invention provides a medicine for dispelling wind, dehumidifying, dredging channels and activating collaterals, which is composed of the following components in parts by weight: 7-10 parts of kadsura pepper stem, 7-10 parts of the root of kudzu vine, 6-9 parts of caulis sinomenii, 3-5 parts of fevervine, 6-9 parts of caulis spatholobi, 5-8 parts of garden balsam stem, 5-8 parts of drynaria rhizome, 6-9 parts of radix clematidis, 5-8 parts of cortex lycii radicis, 4-7 parts of clove, 13-18 parts of prepared sealwort, 4-7 parts of loranthus parasiticus, 4-7 parts of scorpio, 4-8 parts of stiff silkworm, 6-10 parts of pawpaw, and 13-18 parts of liquorice. A plurality of traditional Chinese medicine are matched rigorously, and therefore, the medicine for dispelling wind, dehumidifying, dredging channels and activating collaterals has the effects of eliminating evil and strengthening the body resistance, also has the effects of complementing the vital qi and improving body disease resistance while eliminating pathogenic factors, and is applied to patients suffering from wind, cold and dampness poliomyelitis, anaesthesia, cervical, scapulohumeral and four-limb ankylosis, dizziness, sleepiness, heavy body, muscle limp, fatigability and most of hemiplegia.