The diet of long-term dialysis patients should be low-salt, low-fat, high-quality protein, limited phosphorus, limited potassium, while restricting the amount of water intake. 1. Low-salt, low-fat and high-quality protein food: long-term dialysis patients will lead to protein loss in the body, and there will be weakness and other symptoms, it is recommended that more intake of high-quality protein food, such as: fresh milk, eggs, fish, lean meat, etc., and at the same time, dialysis patients should have a light diet, less salt, and avoid deep-fried and greasy food intake. 2. Low-phosphorus food: long-term dialysis patients with ionic disorder, high phosphorus and low calcium can cause metabolic bone disease, it is recommended that patients limit the intake of high-phosphorus food: such as: beans, nuts, animal offal and so on. 3. Low potassium diet: hyperkalemia is a common risk factor for dialysis patients, potassium is mainly excreted through urine, long-term dialysis patients’ urine output gradually decreases or even no urine, patients are advised to strictly limit the intake of high-potassium foods, such as bananas, oranges, kiwi fruits and other fruits, celery, shiitake mushrooms, spinach and other vegetables. 4. Water restriction: excessive water intake during dialysis can lead to water intoxication and cardiovascular complications, so water intake should be restricted. In order to improve the quality of life and prolong the survival of long-term dialysis patients, they should have a healthy diet, control the amount of water intake, and have regular checkups under the doctor’s instructions.