To explore the effects of Herba Leonuri Combined with Oxytocin on Uterine Atony Postpartum Hemorrhage.Methods:A total of 80 patients who underwent cesarean section in Wanning People's Hospital from June 2017 to June 2018 were randomly divided into a control group(40 cases)and an observation group(40 cases).After delivery，all puerpera were treated with oxytocin，and the observation group was added with Herba Leonuri granules.The occurrence and curative effect，the amount of bleeding at different time points，postpartum hemoglobin and erythrocyte count，adverse reactions in the 2 groups were observed and compared.Results:The total effective rate in the observation group was 9500%，which was significantly higher than 7750% in the control group(P<005).The amount of maternal bleeding at delivery，2 hours after delivery，24 hours after delivery and 72 hours after delivery decreased significantly in both groups，and the amount of bleeding in the observation group was lower than that in the control group(P<005).After operation，the hemoglobin and erythrocyte counts of both groups decreased，but the decrease in the combined group was less，which was higher than that in the control group(P<005).The incidence of adverse reactions was 10% in the observation group and 175% in the control group.There was no significant difference between the 2 groups(P>005).Conclusion:Herba Leonuri combined with oxytocin has a good clinical effect on uterine atony postpartum hemorrhage，which can significantly control the bleeding，improve the level of hemoglobin and erythrocyte，which is worthy of clinical promotion.