Objective: To observe the effect of Dahuang umbilical applying on survival rate of replantation and serum endotoxin(ET)after replantation of severed finger.Methods:Divided 40 cases of patients who had receivedthe replantation of severed finger into control group with 20 cases(24 replanted fingers)and treatment group with 20 cases(26 replanted fingers)randomly.The control group was given routine treatment,while the treatment group was additionally received Dahuang umbilical applying after 4 hours of replantation.Compared the defecation, visual analog scale(VAS), and survival rate of severed finger after replantation in both groups.Detected the serum ET level in two groups.Results:The survival rate was 92.31%in the treatment group,being evidently higher than 62.50%in the control group,the difference being significant(P <0.01).At the 48thand 96thhour after replantation,times of defecation and flatus in the treatment group were obviously more than those in the control group,and VAS score in the treatment group was obviously lower than that in the control group,the difference being significant(P<0.01).At the 96thhour and one week after replantation,serum ET level in the treatment group was obviously lower than that in the control group in the same period,the difference being significant(P<0.01).Conclusion:The application of Dahuang umbilical applying after replantation of severed finger can effectively prevent constipation,reduce pain,and improve the survival rate of replantation,and its fuction of declining the serum ET level may be related to its curative effect.