Gastrointestinal tumors are complex diseases that require systematic multidisciplinary approach to diagnosis and treatment. Currently, the design of tumor treatment includes surgery, chemotherapy, radiotherapy, intervention, radiofrequency, etc. When is the best time for these treatments often requires a good multidisciplinary team to discuss, especially for patients whose tumors are initially detected and not yet treated, the choice of the first treatment has a great impact on the prognosis, so it is more important to choose which treatment carefully.