Method for preparing liquor to treat gynecological inflammation, which is prepared from cordate houttuynia, spatholobus stem, jack-in-the-pulpit tuber, sweetgum fruit, dandelion, corydalis tuber, Poria cocos, achyranthes and cyathula root, spicebush root, plantain seeds, corktree bark, red peony root by the weight ratio of 3:2:2:2:3:2:3:2:2.3:2.2, washing the ingredients with clean water, water immersing for half a hour, water grilling twice, for 1.5 and 1 hour respectively, taking the filtrate, cooling down and charging ethanol to 65% of alcohol, freezing and stewing 48 hours, taking the supernatant fluid, pump filtering, merging the filter liquor, reclaiming ethanol, fine filtering, thus obtaining the soup.