Familial adenomatous polyposis is a group of autosomal dominant disorders characterized by multiple adenomatous polyps in the colorectum, with a global incidence of about 1/7000-1/10,000. The disease was often referred to as colonic polyposis, hereditary colonic polyposis, familial polyposis, familial colonic polyposis, and colonic adenomatous polyposis. The cause of this disease is the mutation of the APC gene on chromosome 5, and since chromosome 5 is autosomal, there is no genetic difference between men and women, and the incidence rate of men and women is about 1:1. Most polyps in FAP patients appear in adolescence, and the average age of appearance is about 10 years. In some patients, the polyps grow sporadically, and there are only a few dozen polyps in the whole colon. The size of polyps varies from several millimeters to several centimeters, with 0.5-1 cm being the most common. Some patients have varying degrees of abdominal discomfort or pain, and some large polyps have erosions, ulcers, or even severe gastrointestinal hemorrhage. Some patients with specific types have extra-intestinal symptoms such as skin soft tissue tumors, chondromas, and skin dark spots. The greatest threat to FAP patients is the occurrence of malignant transformation of polyps. The malignancy rate is almost 100%, from the appearance of symptoms to polyp malignancy is generally about 15 years, if not treated in time, about 50% of patients will develop cancer at the age of 20, about 75% at the age of 35, about 90% at the age of 45, and almost all of them will develop cancer after the age of 50. Therefore, early detection, early diagnosis and early treatment are the keys to FAP treatment. For people with FAP in their families, it is recommended to go to regular medical institutions for genetic screening, while patients with symptoms should undergo colonoscopy and other tests as soon as possible to clarify the diagnosis. Surgery is currently the only method to cure FAP, and the exact procedure varies from person to person. For patients with few polyps in the cecum, ascending colon and rectum, subtotal colectomy and cecum-rectum anastomosis are feasible; for densely distributed polyps in the whole colon, total colectomy, ileal abdominal fistula or ileal pouch-forming rectal anastomosis is feasible; for patients with lower rectal involvement, total colectomy with rectal mucosal debridement, ileal pouch-forming and rectal intrasheath anal canal anastomosis can be performed for the purpose of anal preservation. Traditional open total colectomy is a huge creation, because it requires simultaneous surgery of rectum, left hemicolectomy and right hemicolectomy, from top to bottom and from left to right. The traditional open surgery has a large incision, extensive surgery, great trauma, slow postoperative recovery and many complications, which is always a huge invasive surgery that causes headache to doctors and fear to patients, and therefore restricts the surgical treatment of FAP. With the rapid development of laparoscopic technology, laparoscopic total colectomy technology has become more and more mature in recent years, and is favored by patients and doctors because of its many minimally invasive advantages of less trauma, less blood loss, faster recovery and less pain. patients with FAP can go to hospitals with minimally invasive laparoscopic surgery technology to reap good treatment results.