For advanced cancer nausea and not wanting to eat, you can adopt the method of eating less and more to replenish your body with the required nutrients, or you can use medications to reduce nausea and stimulate appetite to increase the amount of food you eat. If this is not possible, intravenous nutritional support can be used, that is, nutrients can be supplemented to the patient through intravenous injection. When cancer patients reach the advanced stage and cannot eat because of nausea and vomiting, it may be attributed to the side effects of chemotherapy of the patients or the cancer has metastasized to the liver, gastrointestinal, pancreatic and other digestive organs, resulting in digestive dysfunction and patient’s nausea and loss of appetite. The countermeasure taken can be the method of eating less and more meals, i.e. the patient eats less food each time but increases the number of times he eats, and the food is preferable to artificially formulated nutritional powder, which is only suitable for patients with relatively mild symptoms. If patients have heavy gastrointestinal reactions such as nausea and vomiting, antiemetic drugs, such as gastroflucan, and appetite stimulating drugs, such as megestrol, can be given appropriately to reduce the feeling of nausea and increase the appetite. Some patients cannot ensure nutrition supply by various methods, intravenous nutritional support should be implemented, i.e., various nutrients should be input from the vein, and at present, there are prepared intravenous nutritional solutions available clinically.