The invention discloses a medicament for treating cough and asthma diseases, and relates to a Chinese medicament. The medicament is prepared from the following raw materials: 20 to 40 grams of remote lemongrass herb, 5 to 25 grams of Chinese angelica, 5 to 25 grams of white paeony root, 5 to 25 grams of apricot kernel, 8 to 25 grams of platycodon root, 3 to 18 grams of fine-leaf schizonepeta herb, 3 to 18 grams of divaricate saposhnikovia root, 3 to 18 grams of skullcap root, 3 to 18 grams of mint, 3 to 18 grams of tatarian aster root, 3 to 18 grams of dried orange peel, 3 to 18 grams of cassia twig, 3 to 18 grams of liquorice root, 3 to 15 grams of dried ginger, 4 to 8 grams of dahurian angelica root and 2 to 6 grams of ephedra root; and during preparation, the ground powder is mixed to prepare powder or capsules. The medicament has the advantages of simple formula, low cost, no pain, quick response and high curative effect, is easy to produce and convenient to use, and is a good medicament for treating acute and chronic bronchitis, bronchial asthma, pulmonary emphysema and pulmonary heart disease.