Early stage non-muscle invasive bladder tumors can survive for up to twenty years with standardized bladder perfusion chemotherapy after elective bladder tumor resection. The specific survival time is closely related to the grade and stage of the tumor, the size of the tumor, and the time and frequency of recurrence. Five-year survival rate” is commonly used to assess the survival of tumor patients. Pathological grading and staging of the tumor are the most important factors affecting the prognosis. If the malignant tumor of bladder is in the stage of carcinoma in situ, aggressive surgical treatment at this time can achieve very good results. The five-year survival rate of invasive bladder cancer patients with bladder preservation surgery is 58.5%~69%. At present, there is a lack of effective preventive measures for the development of bladder cancer, so bladder cancer patients must be detected, diagnosed and treated early in order to get a good therapeutic effect.