Abstract： Objective： To observe the clinical effect of Longdan Xiegan tang for bacterial vaginosis of lower energizer dampness- heat in liver meridian type. Methods：A total of 60 cases of patients with bacterial vaginosis of lower energizer dampness-heat in liver meridian type were selected and divided into two groups according to random number table method， with 30 cases in each group. The control group was treated with metronidazole tablets， and the observation group was treated with the oral administration of Longdan Xiegan tang and Chinese medicine fumigation and washing. Both groups were treated for seven days. Clinical effects and the disappearance time of symptoms were compared between the two groups. Changes in vaginal pH values，scores of lactobacillus amount and symptom scores of lower energizer dampness-heat in liver meridian syndrome， as well as incidence of adverse reactions were observed before and after treatment. Results： After seven-day treatment，total clinical effective rate in the observation group was higher than that in the control group(P＜0.05). The disappearance time of vulvar pruritus，vaginal pain，and mucous hyperemia in the observation group was shorter than that in the control group(P＜0.01). Vaginal pH values in the two groups were decreased when compared with those before treatment，and scores of lactobacillus amount were increased，differences being significant(P＜0.01). Vaginal pH value in the observation group was lower than that in the control group，and the score of lactobacillus amount was higher，differences being significant(P＜0.01). Scores of excessive vaginal discharge，yellow vaginal discharge，vulvar pruritus，bitter taste and sticky slimy sensation in the mouth， torpid intake， dry stool， and yellow urine in the two groups were decreased when compared with those before treatment，and the seven symptom scores in the observation group were lower than those in the control group(P＜0.01). The incidence of adverse reactions in the observation group compared with the control group， there was no significance in the difference(P＞0.05). Conclusion： Longdan Xiegan tang can effectly relieve symptoms， improve vaginal environment and curative effect with good safety in the treatment of bacterial vaginosis of lower energizer dampness-heat in liver meridian type.