With the change of people’s diet and lifestyle, mental and psychological, social factors, the prevalence of chronic constipation is gradually increasing, which seriously affects the quality of life of patients, and is also closely related to colorectal cancer, cardiovascular and cerebrovascular accidents and senile dementia. The treatment of constipation should not only be laxative, but should actively find out the possible causes and exclude organic colorectal lesions, at the same time, for functional constipation, according to the site of difficult defecation and power disorders, the types (slow transmission type, outlet obstruction type, mixed type, etc.) need to be distinguished and then dialectical treatment can achieve good results. We can provide comprehensive and efficient diagnosis and treatment for patients with functional constipation through high-resolution anorectal dynamics diagnosis system with biofeedback therapy.