Uremic patients after kidney transplantation due to the great changes in their physical condition, various habits need to make some adjustments to adapt to the new physical state, maintain the function of the transplanted kidney and maintain their health. There are three conditions of patients before kidney transplantation, one is patients with chronic renal failure without dialysis treatment, this part of patients before surgery generally requires strict control of diet, high quality low protein, low salt diet and avoid soy products. There is a part of hemodialysis patients, the general requirement is to restrict water, low salt, low potassium diet, and there is a part of peritoneal dialysis patients, this part of the patient diet requirements to restrict water, low sugar, low salt and other diets. After successful kidney transplantation, with the recovery of kidney function, various states in the body have undergone great changes. The prominent changes are that toxins such as blood creatinine and urea nitrogen have significantly decreased to normal levels, and blood calcium and phosphorus have gradually returned to normal. With the decline of toxins in the body, coupled with the use of prednisone and other drugs, the appetite of patients after kidney transplantation will significantly improve, and many patients will overeat after kidney transplantation. This leads to dramatic weight gain and increased risk. Then how to control the diet after kidney transplantation? After successful kidney transplantation, the patient’s diet has changed significantly compared to the previous one, do not continue the previous diet. Do not excessively restrict the water consumption, the water consumption is controlled at about 2000ml per day. Protein intake can be restored to normal, and soy products can be eaten appropriately. Salt intake is based on blood pressure. Patients with normal blood pressure can have normal salt intake, while those with high blood pressure need to continue to limit salt intake. For sugar control, it needs to be controlled according to blood sugar level. Diet is mainly light diet and pay attention to the balance of dietary structure. Due to the improvement of appetite after kidney transplantation, many patients’ dietary intake is not controlled, resulting in significant weight gain. It causes hyperlipidemia, overweight and increases various risks, therefore, the diet structure and diet amount need to be controlled, the best monitoring indicator is weight, and the weight gain after kidney transplantation should not exceed 10% of the original weight. Diet structure is adjusted according to different physical conditions after surgery For hyperlipidemia patients, it is necessary to restrict foods with high fat content, including animal offal, egg yolk, walnuts, nuts and other foods. For patients with elevated blood sugar, the diet needs to be limited to foods with high sugar content, including rice flour, pasta, etc. And patients with high uric acid need to avoid high purine diet, such as animal offal, seafood, bean food. Due to the peculiarities of the body after kidney transplantation, immunity-boosting foods and drugs cannot be taken. Common immunity-boosting foods and drugs are: ginseng, red ginseng, Korean ginseng, ganoderma lucidum, astragalus, wolfberry, medicinal dates, royal jelly, turtle, eel, etc. These drugs and foods will boost the body’s immunity and increase the chance of rejection reaction after taking, and cannot be eaten. There are also some foods that may increase the chances of rejection, to eat less, common foods are: fungus, mushrooms, seafood, etc. Some of the drugs that can be eaten to regulate immune function are: Cordyceps, sea cucumber. Due to the low immunity of patients, kidney transplant drugs may cause gastrointestinal side effects, therefore, try to avoid eating raw food, which may lead to gastroenteritis. Raw foods increase the risk of disease transmission by bacteria and other microorganisms and are recommended to be avoided. Except for the above mentioned foods and principles, the rest of the foods can be referred to normal diet without deliberately eating some special foods. People are food-oriented. After kidney transplantation, many dietary constraints before surgery can be lifted to improve the quality of life, but at the same time, new constraints will be added to facilitate the long-term survival of the transplanted kidney, therefore, a scientific and reasonable diet is very important to improve the quality of life of kidney transplant patients and prolong the survival time of the transplanted kidney.