Patients with renal failure should eat light, easily digestible food and appropriate supplement of high quality animal protein, such as milk, lean meat, fish and eggs, but the amount should not be too much, because excessive consumption of high protein diet will increase the burden of kidney excretion and accelerate the damage of kidney. Therefore, a high quality low protein diet is emphasized, and at the same time, foods rich in unsaturated fatty acids, such as fish oil and vegetable oil, can be consumed appropriately, while animal fats and oils can be minimized to reduce the occurrence of atherosclerosis. If patients with hypertension or oliguric renal failure, pay special attention to the amount of fluid intake and low or no salt diet, eat less pickles, salted fish, salted meat, etc., and try to eat more vegetables and fruits with potassium, such as cabbage, bok choy, apples, etc., which can reduce the occurrence of pulmonary edema and heart failure. Also pay special attention not to drink those meat soup or bone soup, the southern region even think that lean meat water has nutrition these are wrong, not only increase the water load, but also increase the intake of high purine, high blood phosphorus, which is worse for patients with chronic renal failure, should eat meat boiled twice water and do not drink those soups.