The invention discloses 
medicine for treating bronchial 
asthma and a preparation method of the 
medicine. The 
medicine is mainly prepared from 
syzygium brachythyrsum fruit, bunge hackberry 
bark or stem, stem and leaf of common nepenthes, 
flos farfarae, herba humuli scandentis, leaf of purple 
azalea, flower or root of marigold, 
twig and leaf of buddha's lamp, root of Yunnan madder, 
herb of 
gnaphalium japonicum, 
lawn pennywort 
herb, root or 
rhizome of riparian greenbrier, ambergris, radix angelicae dahuricae, 
herb of waterplantain 
ottelia, selenitum, herba hyperici japonici, root of 
zanthoxylum planispinum, herb of birdsfoot 
trefoil, 
zanthoxylum planispinum, 
earthworm, sheepear 
inula herb, herba pimpinellae, root of Chinese 
hibiscus, leaf of 
rhododendron mucronulatum, herba incarvillae, 
flos rosae rugosae, caulis sinomenii, herba seu radix amaranrhi, herb of clavateleaf oberonia, folium rosae laevigatae, 
rhizome of featherleaf rodgersflower, leaf of 
cymbidium ensifolium, caulis celastri, common rue herb and bryozoatum according to a certain weight ratio. The medicine disclosed by the invention has the functions of relieving a cough and 
asthma, moistening 
lung, descending qi, clearing away 
lung heat, moistening 
dryness, eliminating 
phlegm, promoting qi, activating blood, clearing away heat and detoxifying, is used for treating the bronchial 
asthma, takes effect fast and has a good 
treatment effect.