Objective:To explore the effect of tow irrigation solutions for peritoneal irrigation on the bowel movement after appendectomy with diffuse peritonitis of child patients. Methods:A Total of 48 patients were divided into a control group (23 patients) and a treatment group (25 patients) at random. In the control group,0.5%Metronidazole Injection (100ml) was used for peritoneal irrigation during operation. In the treatment group, Shuertai(100ml) was used for peritoneal irrigation during operation, observation the bowel movements of patients in postoperative 24h,48h,72h. Results:there was statistical y significant in the bowel movement postoperative 24h between the control group and the treatment group (p<0.05). Conclusion:Use of shuertai for the irrigation of peritoneal can effectively help the return of postoperative bowel movement, prevent obstruction of intestine and intestinal adhesions, relieve pain, shorten the treatment time and decrease hospitalization costs.