Diet during nasopharyngeal cancer treatment should pay attention to balanced nutrition, and light, easily digestible and nutritious food can be chosen. Nasopharyngeal cancer patients should pay attention to adjusting diet structure during treatment, try to eat more light and easy digestible food, such as rice soup, vegetable soup, fish soup, soft noodles, etc.; they should also ensure nutrient intake, and can choose protein-rich food, such as fish, puree of meat, egg, milk and tofu. In addition, more fresh vegetables and fruits should be eaten, such as cauliflower, cabbage, apple, banana and so on. In the daily diet of nasopharyngeal cancer patients, avoid smoking and alcohol, try to avoid spicy and stimulating foods, such as chili peppers, barbecue, fried foods, avoid overeating, and pay attention to oral and nasal hygiene. They should actively cooperate with the treatment and pay attention to regular review.