The bladder is an extremely important muscular organ of the urinary system that functions as a store of urine and urination. Like many other organs, malignant tumors can occur in the bladder, and it ranks eighth in the incidence of systemic tumors. The treatment of bladder tumors should be based on the number, size, location and especially on the malignancy and clinical stage of the tumor to determine the appropriate treatment plan. For many bladder tumors with low malignancy and small, limited tumors, minimally invasive transurethral resection, supplemented by chemotherapy, radiotherapy and Chinese medicine treatment can be used to achieve satisfactory treatment results. However, for bladder tumors with higher malignancy, larger tumors, more extensive lesions, and deep infiltration to the muscular layer or when the malignancy level of tumor increases and the disease progresses after receiving minimally invasive treatment, radical total bladder resection should be used decisively and timely to obtain the best treatment effect. As the entire bladder is removed, how to address the urinary storage and voiding function of these patients has long been a hot topic of concern, research and exploration for urologists internationally. Traditionally, urinary diversion (controlled or non-controlled stoma) can be used to address these challenges after the bladder has been removed. A controlled “bladder” requires regular home catheterization, while a non-controlled “bladder” has an involuntary flow of urine into a urine collection bag that the patient wears throughout the day. The urinary diversion procedure is relatively “easier” than the “bladder” replacement procedure. However, the skin around the stoma is prone to complications such as inflammation and ulcers; sometimes the urine bag will accidentally fall down and cause “water to flood”, and the damp clothes and pants and the smell of urine will not only make the patient frustrated and unhappy, but also sometimes put the patient in a very embarrassing situation, and eventually the patient becomes very afraid to go to public places, which seriously affects The patient’s social activities and physical and mental health are seriously affected. Of course, the increased financial burden caused by the consumption of urinary bags and catheters, and the aesthetic impact on the abdominal wall are also very obvious disadvantages of this type of surgery. At present, domestic and foreign tend to use the intestine to replace the “bladder”, in accordance with the plastic surgery method, to make a new urinary bladder, the upper end connected to the ureter, the lower end directly connected to the urethra, avoiding the diversion of urine from the skin of the abdominal wall. This in situ bladder reconstruction has become increasingly popular internationally in recent years, and the new “bladder” not only has a certain capacity, but also maintains a low tension, and after some training, patients can basically do more comfortable urination, to meet their “normal urination” of The new “bladder” not only has a certain volume but also maintains a low tension.