Patients with histologically confirmed stage III-IV renal malignancies; The patient underwent radical operation of RCC within 8 weeks before enrollment; Must have normal marrow hematopoiesis function as defined below: Hemoglobin≥90g/L, WBC>4000/mm3, Absolute Neutrophil Count (ANC)≥1500/µL, Platelet≥ 100,000/µL, Must have normal important organ function as defined below: Total bilirubin≤1.5 x institutional upper limit of normal(ULN), AST(SGOT) and ALT(SGPT)≤2.5x ULN , ALP≤1.5x ULN; BUN and Creatinine <1.5x ULN, Creatinine clearance ≥80mL/min.