Undifferentiated non-keratinizing squamous carcinoma is the most common pathological type of nasopharyngeal carcinoma. If the diagnosis is clear, nasopharyngeal cancer can be treated with radiotherapy because this type of nasopharyngeal cancer is the most sensitive to radiotherapy. Simultaneous treatment with chemotherapy will be more effective and can greatly improve the survival rate of patients. If the tumor in the nasopharynx is particularly large, surgery can be considered before radiotherapy. Radiotherapy is harmful to human body, and regular review of blood routine, liver and kidney function, etc. is needed after treatment, supplemented by whitening and other treatments. After radiotherapy, patients with nasopharyngeal cancer will have symptoms such as dry mouth and nasal pain, so they need a light diet, vitamin supplementation and improvement of body immunity.