The invention discloses fragrant grass vagina cleaning liquid and a preparation process thereof, and relates to the fragrant grass vagina cleaning liquid for preventing and treating gynecological inflammation and the preparation process thereof. The fragrant grass vagina cleaning liquid is prepared by processing glossy privet fruit, angelica dahurica, Chinese ligusticum rhizome, mint, divaricate saposhnikovia root, ash bark, amur corktree bark, yerbadetajo herba ecliptae, baical skullcap root, gardenia, lightyellow sophora root, motherwort herb, white paeony root, heartleaf houttuynia herb, nutgrass galingale rhizome, common cnidium fruit, rhubarb, spreading hedyotis herb, honeysuckle flower, dandelion, weeping forsythiae, belvedere fruit, borneol, borax, alum, citric acid, royal jelly, sorbic acid, sodium bicarbonate, glycerol, ethyl cellulose, vitamin C, sodium salt, citric acid and sodium hydroxide serving as raw materials. A product does not have stimulus or dependency, is not influenced by much secretion, and can kill bacteria and microorganism pathogen in vagina, protect mucosal tissues in the vagina, improve the physiological function of female genital organs and prevent and treat diseases.