The invention relates to a method for preparing a Chinese drug to cure the bloody gonorrhea cystitis, which belongs to the Chinese drug preparing method technology field. Anti-infective and hemostatic drugs, such as cephalexin, are adopted to cure the cystitis at present, and gastrointestinal reaction, sichness and disgorge and other symptoms sometimes occur; eryption is seen occasionally; and hemolytic anemia happens to specific patients. The invention adopts the technical proposal that Chinese pink herb, nukatani, ricepaper pith, rush pith, henom bamboo leaf, broom cypress, chingma abutilonseed, pyrrosia leaf, lygodium spores, talc, dioscoreae hypoglaucae root, helianthus annuus, herb of bottle brush, adsuki bean, corn stigma, bottlegourd, dayflower, coix seed, rhubarb and glycyrrhiza uralensis are put into 100 ml water to be soaked for 30 minutes, then are decocted through slow fire, the decocted herb liquor is filtered through gauze, and then the 320 ml drug for curing the bloodygonorrhea cystitis is prepared. The preparation method has the advantages that: the preparing is simple, the toxic and side effects are less, the curative effect is stable after the drug is taken orally, and the drug is absorbed better in the digestive tract. The allergic reaction caused by the western medicine is avoided.