Lung-tonifying capsule for treating lung-distension caused by qi deficiency of lung and kidney and preparation method thereof

The invention discloses a lung-tonifying capsule for treating lung-distension caused by qi deficiency of the lung and the kidney and a preparation method thereof. The lung-tonifying capsule is prepared from astragalus, dangshen, largehead atractylodes rhizome fried with earth, morinda root processed with salt-water, malaytea scurfpea fruit processed with salt-water, cistanche, dried orange peel, prepared pinellia tuber, fried perilla fruit, glehnia root, fructus schisandrae sphenanthera processed with vinegar, honey-fried licorice root and silica. The lung-tonifying capsule has a good treatment effect on chronic obstructive pulmonary disease in a stable phase; compared with a single western medicine group, the lung-tonifying capsule has obvious advantages in the aspects of improvement of clinical symptoms and pulmonary functions; and the lung-tonifying capsule, a traditional Chinese medicine preparation, has substantial curative effects and no toxic and side effects and endows patients with more options for m