The invention discloses a gynecological external preparation and a preparation method thereof. The gynecological external preparation is mainly prepared from the following traditional Chinese medicinal materials: radix sophorae flavescentis, valeriana jatamansi jones, dragon's blood and moxa pieces. The preparation can be prepared into dosage forms such as soft capsules, suppositories, troches and capsules. Meanwhile, the invention discloses the preparation method of the gynecological external preparation. The preparation method comprises the following steps: carrying out reflux extraction 1-3 times in a water bath with radix sophorae flavescentis added with 65% ethanol the amount of which is 6-10 times that of the radix sophorae flavescentis, 1.5 hours per time; recovering ethanol from the filtrate; concentrating to relative density of 1.05 (60 DEG C); drying; crushing to fine powder for later use; crushing valeriana jatamansi jones powder, sieving by a 120-mesh sieve, carrying out CO2 supercritical extraction on volatile oil to obtain volatile oil for later use; and respectively crushing dragon's blood and moxa pieces to fine powder, sieving by a 100-mesh sieve, adding the screened dragon's blood and moxa pieces into the valeriana jatamansi jones volatile oil to be uniformly mixed, adding the fine powder, uniformly stirring, adding a pharmaceutical dosage form, and adding auxiliary materials to prepare a preparation for vagina. The obtained preparation has the characteristics of exact curative effect, safety and convenience, few side effects and the like. The preparation disclosed by the invention increases a novel treatment drug for the market, thereby providing wider selection to both parties of physicians and patients.