Objective: To explore the therapeutic effect of intestinal drip of Erbai Decoction plus culcium agent on ulcerative colitis. Methods: 98 cases of ulcerative colitis were randomly divided into two groups. Treatment group （n = 50） was treated by intestinal drip of Erbai Decoction

and control group （n = 48） was given oral adminstration of Erbai Decoction. Results: Total effective rate was 88% in treatment group

which was higher than 72. 92% in control group. There were significant differences in changes of main clinical symptoms

physical signs and cumulative scores for examination of fiber-colonoscopy （P< 0. 05 or P<0. 01） between two groups. Serum IgM and IgG level was significantly improved in treatment group. Conclusion: Erbai Decoction can clear away heat and eliminate dampness

relaxe the bowels and remove turbid

eliminate diarrhea

relieve abdominal pain and distention

arrest lesion of colic mucosa

promote repair of the ulcer

strengthen immune regulativefunction. The therapeutic effect of intraintestinal drip was better than that of oral administration.