The diet of early stage kidney cancer patients must be light and nutritious, with low salt and low fat diet, and it is better not to eat foods containing protein, such as soy products, eggs or fatty meat. The patient’s postoperative diet should be mainly small and repeated. Post-operative vitamins and trace elements should be supplemented, and patients should not eat too greasy food, barbecue, pickled, spicy and greasy products, and try to eat a light diet, reduce sodium intake, and appropriately supplement high-calorie food, such as lean meat, fish and soup made from bones. Patients with early stage kidney cancer must pay attention to review, in principle, at least once a year, and a reasonable diet and reasonable nutrition are beneficial to the recovery after surgery.