After surgery for stage III kidney cancer, there is still a need to continue the treatment and carry out the next step of treatment according to the pathology of kidney cancer to relieve the symptoms, control and prevent the spread of cancer cells. Kidney cancer stage III belongs to locally advanced kidney cancer, the tumor is more malignant and prone to proliferation and metastasis, and may have symptoms such as hematuria, lumbar pain or lumps, etc. After surgical resection, it is necessary to cooperate with various methods such as chemotherapy, radiotherapy or targeted drug therapy to control the development of the tumor, control the spread of the cancer cells, alleviate the symptoms and prolong the survival period. Diet is mainly low protein, do a good job of psychological communication with patients, do not have excessive psychological pressure and psychological burden, pay attention to rest, avoid staying up late, prohibit smoking and alcohol, diet is mainly light, low-salt diet, and eat less spicy and stimulating food. If there is any discomfort, consult a doctor in time and follow the doctor’s instructions.