The invention discloses a 
medicine for treating 
neurosis and a preparation method thereof. The 
medicine provided in the invention comprises the following raw materials: 30 parts by weight of vinegar-processed tortoiseshell, 5 parts by weight of gen-seng, 15 parts by weight of longan 
aril, 20 parts by weight of lily, 20 parts by weight of fried 
Semen ziziphi jujubae, 15 parts by weight of 
polygala root, 10 parts by weight of grass-leaved sweetflag 
rhizome and 10 parts by weight of 
curcuma tuber. The preparation method for the 
medicine with a 
capsule form comprises the following steps: extracting volatile oil from grass-leaved sweetflag 
rhizome by the method of 
steam distillation, filtering the 
aqueous solution, and respectively storing the volatile oil and the filtrate with containers for subsequent use; crushing vinegar-processed tortoiseshell and gen-seng into 
fine powder; decocting the rest 5 raw materials, namely, longan 
aril, lily, fried 
Semen ziziphi jujubae, 
polygala root and 
curcuma tuber, and 
herb residues of grass-leaved sweetflag 
rhizome with water twice, filtering the decoction, combining the filtrates, standing the combined filtrate, carrying out filtrating, concentrating the filtrate under reduced pressure, spraying the filtrate to form 
powder, adding gen-seng and tortoiseshell 
powder, evenly mixing the 
powder, carrying out 
granulation, 
drying and cooling the granules, uniformly spraying the volatile oil into the granules, and filling the granules into capsules. The medicine provided in the invention reduces side effects in treating 
neurosis with western medicines and has good curative effects.