Malignant tumor in kidney, also known as kidney cancer, is a serious disease, because there is no curative treatment for malignant tumor in kidney. However, even after surgical resection, there is still a possibility of recurrence or metastasis of the malignant tumor in the kidney, so lifelong checkups are needed, and if necessary, immunobiological treatment or targeted drugs are required. If the metastasis of distant organs has already appeared at the time of detection, then the surgical effect is poor, and the quality of life of the patients will be reduced and their health will be seriously threatened, so it is a serious lesion and should be treated as soon as it is detected. For patients who are eligible for surgery, the kidney and the malignant tumor on the kidney should be removed together, and lymph node dissection should be done during surgery to prevent metastasis through lymphatic tracts after surgery, and after surgery, according to the results of pathological examination, further decision should be made whether to perform immunobiological treatment later.