Sacral nerve sitmulater (SNS), commonly known as a bowel pacemaker, is the latest international treatment for fecal incontinence and constipation. Sacral nerve stimulation is safe, effective, minimally invasive, reversible, and has no significant side effects. Sacral nerve electrical stimulation treatment is generally completed in two steps, first a temporary sacral nerve stimulation guide is installed and a low-intensity current is used to continuously stimulate the afferent nerve to regulate the balance of the nerve reflexes, the patient does his own diary and if it is confirmed to be effective, a permanent stimulation device is implanted. The exact mechanism of action is not known, but the likely mechanism is: Modulation of the sacral plexus, including modulation of somatic nerve fibers acting on the external sphincter and pelvic floor muscles, and modulation of vegetative nerve fibers acting on the internal sphincter and colon, and modulation of afferent sensory fibers controlling the rectum and anus, by continuous stimulation with low-intensity current, leading to clinical efficacy. For fecal incontinence, non-surgical treatment methods include diet modification, medication, anal lift training, biofeedback therapy, etc. More than half of the patients have their symptoms relieved by these treatments, but there are still a considerable number of patients, i.e. patients with intractable or refractory fecal incontinence, who need further treatment. Surgical treatment mainly includes sphincteroplasty, skeletal muscle grafting, artificial sphincter and permanent stoma, and sacral nerve electrical stimulation. Studies of patients with external sphincter injury after sphincteroplasty have shown that early postoperative outcomes are good 70% to 80% of patients have greater symptom relief, but long-term outcomes are poor, with increasing numbers of patients experiencing worsening symptoms over time. Skeletal muscle graftplasty and artificial sphincters are more traumatic to the body, have more complications of their own, and their failure rate is higher. For patients with anal incontinence caused by a relatively intact external anal sphincter but its functional defect, sacral nerve electrical stimulation is the latest international treatment for fecal incontinence and is a safe and effective surgical procedure with minimally invasive, reversible, and no significant side effects. Matzel et al. reported in l995 the results of three patients with fecal incontinence treated with SNS at a 6-month follow-up; two had complete remission and one had significant improvement, and the study found a significant increase in the patient’s anal systolic pressure after the procedure. Subsequently, in 2001, six more patients were followed for 5 to 66 months and all were found to be in remission, with an average decrease of 15 points in the Wexner Incontinence Index and a nearly doubling of the patient’s maximum systolic pressure (48.5-92.7 mmHg). Mellgren et al. treated 133 patients with fecal incontinence, first with temporary stimulation, with a success rate of 90%, and 120 with permanent stimulator implantation, and after 3 years of follow-up, the results showed that 103 patients (86%) had a good outcome, with a significant reduction in weekly incontinence from an average of 9.4 to 1.7 times, and 40% of these patients had complete relief. Complete relief was achieved in 40% of the patients. Compared to the preoperative period, the patients’ resting anal pressure and maximum retraction pressure were significantly increased. The quality of life of the patients was significantly improved. This fully demonstrates that sacral nerve electrical stimulation is a safe and effective treatment for fecal incontinence. In selecting patients for treatment with sacral nerve stimulation, Leroi, based on the protocol proposed by Jarrett and combined with the opinions of several experts, concluded that the indications should include: 1. the number of episodes of incontinence >l/week and/or affecting the patient’s quality of life; 2. no serious damage to the external sphincter (>30% of the perineal diameter), with or without repair; 3. the need for traditional smelting 3. not responding to traditional treatment options (antidiarrheal drug application and biofeedback therapy). In conclusion, the intestinal pacemaker is a safe and effective method for the treatment of intractable fecal incontinence, with the advantages of being less invasive, reversible, and without significant side effects.