Peritonitis is one of the common acute abdominal diseases in clinic, usually peritonitis patients have to take semi-recumbent position after surgical treatment for the following reasons: 1, semi-recumbent state due to gravity, more inflammatory seepage in the abdominal cavity will flow down into the pelvic cavity, and in the surgical process often in the pelvis will be left in the pelvic drainage tube, so that can be better to make the pelvic cavity of seepage drain out of the patient outside of the body, to avoid more inflammatory seepage in the body to avoid absorbing This can better drain the pelvic exudate out of the patient’s body, avoiding the absorption of more inflammatory exudate in the body, causing systemic infection, and can also effectively avoid the occurrence of inter-intestinal abscess; 2, the peritoneum is relatively weak for the absorption of toxins, and can also reduce the absorption of toxins in the patient; 3, it can reduce the tension in the patient’s abdominal incision, and has a certain protective effect on the healing of abdominal incision. After surgery, patients need active anti-infection treatment, according to the patient’s review results to adjust the antibiotics, in order to make the patient’s inflammation faster to get control.