With the improvement of people’s standard of living, fast pace of life, change of diet structure and the influence of psychological and social factors, the number of patients with constipation is increasing significantly. Functional constipation is an abdominal condition associated with inability to defecate or difficulty in defecation due to non-organic causes, and secondary constipation due to other causes can be excluded by colonoscopy or barium enema and thyroid function tests. The exact cause of constipation is not known, but it is thought to be due to intestinal motility disorder, which is a common clinical condition with significant impact on patients’ daily life, health, social behavior and psychological status. Biofeedback therapy is an effective treatment for constipation caused by pelvic floor dysfunction. Biofeedback therapy is a combination of relaxation therapy and biofeedback technology, which can trace certain biological information related to psychophysiological activities (such as electromyographic activity, brain waves, skin temperature, heart rate, blood pressure, etc.) that the human body is not aware of under normal circumstances, and convert them into perceptible feedback signals such as sound and light, so that the human body can learn to consciously control its own psychophysiological activities and achieve the purpose of adjusting the body’s To achieve the purpose of adjusting the body’s function and preventing diseases. The treatment of chronic functional constipation is effective and has the advantages of simplicity, no damage, no side effects, not easy to relapse, easy to tolerate, and low treatment cost. Each treatment takes about 30 minutes, and 20-35 bowel movements are performed, 5 times a week. 10 times is a course of treatment.