The invention discloses a preparation method of a 
traditional Chinese medicine composition for removing impurities by using a 
ceramic membrane. The preparation method comprises the following steps: adding water into herba schizonepetae, soaking the herba schizonepetae, heating the herba schizonepetae until the herba schizonepetae is boiled, carrying out heat preservation, collecting volatile oil, preparing an 
inclusion compound from the volatile oil, and and subjecting dregs and residual liquid to standing for later use; adding 60-80% 
ethanol into 
cicada slough, radix scutellariae, 
earthworm, radix asteris, radix stemonae and fructus chebulae, performing 
reflux extraction and filtering, performing 
ultrafiltration on an 
alcohol extract by adopting the 
ceramic membrane, and concentrating a filtrate; combining 
alcohol extraction dregs with fineleaf 
schizonepeta herb dregs, residual liquid and stiff silkworms, adding water for decoction, carrying out filtering, performing 
microfiltration on water extract by using the 
ceramic membrane, and concentrating a filtrate under reduced pressure; mixing the 
alcohol extract and the water extract to obtain a thick extract, adding 
dextrin, performing 
vacuum drying, crushing the dry extract, supplementing the 
dextrin, adding a proper amount of an 
adhesive, namely an 
ethanol solution, performing 
granulation, and performing 
drying; and adding the 
clathrate compound into the particles, and conducting uniform mixing. According to the invention, the index component 
baicalin with 
curative effect is enriched, and the extract yield of the extract can be obviously reduced. Meanwhile, the 
viscosity of the extract is improved, a preparation is easy to form, and a dissolving solution of the preparation is clear and transparent.