The elderly with malnutrition can be adjusted by the following methods: 1, change the diet structure, increase the intake of protein, such as eating more meat, eggs, milk, protein powder, etc., if necessary, intravenous supplementation of human albumin. 2, change the diet habits, the elderly due to the degeneration of digestive function, the amount of food per meal is less than that of young people. Therefore, you can adopt the diet of eating less and more meals, not only will not make the patient feel full and distended, but also can ensure sufficient nutrition. 3, change the intake route, for the elderly who have difficulty swallowing, choking and coughing, you can take paste food as the main, reduce the swallowing link, or take the gastric tube and nasal intestinal tube to assist in eating. 4, encourage the elderly to exercise properly, promote gastrointestinal peristalsis, increase the amount of food.