How exactly to operate radiotherapy for nasopharyngeal cancer is a very specialized issue and a very complicated one. Professional radiotherapists first need to clarify the diagnosis and accurate staging of the patient, whether early, intermediate or advanced stage, and these two issues must be determined. If these two issues are determined, an accurate radiotherapy plan can be made according to the patient’s early or late staging, starting with radiotherapy positioning, including mold making. The main purpose of mold making is to fix the patient’s device, and in addition, the patient’s images are collected through the radiotherapy planning system, and the patient’s radiotherapy scope is precisely planned on the TPS planning system, which is the most important step for precise radiotherapy nowadays. After the radiotherapy plan is done, the radiotherapist has to collaborate with the radiotherapy physicist and radiotherapy technician to verify the accuracy of the plan, and if the plan is accurate and the dose is accurate, the radiotherapy plan will be implemented. It takes about half a month to implement the radiotherapy plan for nasopharyngeal carcinoma, and the doctor should pay attention to the patient’s response within half a month. In some cases, patient guidance or adverse reaction management may be required, and an initial assessment of the patient’s adverse reactions and efficacy will be conducted at the end of the half-month period.