It is best to eat high-calorie, high-protein, vitamin-rich and low-fat foods during chemotherapy, such as fish, eggs, milk and potatoes, which can provide energy and nutrients for chemotherapy patients. Chemotherapy is a common treatment for tumor patients, which helps to control the disease. However, chemotherapy has consumption on patients’ body and they need to supplement nutrition, eat more high quality protein, fresh vegetables and fruits, cereals and potatoes, etc. Common foods such as fish, eggs, milk, apples, sweet potatoes, meat, etc. can be consumed appropriately. Common side effects of chemotherapy patients have nausea, vomiting, loss of appetite and other digestive reactions, cooking methods try to choose light, warm, avoid spicy stimulating spices to add, do not overstimulate the gastrointestinal tract. Chemotherapy patients need to eat a reasonable diet, balanced nutrition, maintain a comfortable mood, and actively cooperate with the treatment.