Most of the kidney tumors are malignant, and benign tumors are relatively rare. Generally, through preoperative examination, the benignity and malignancy of tumor can be basically judged, but it cannot reach the purpose of confirming the diagnosis. For example, through enhanced CT examination, the benignity and malignancy of tumor can be initially judged by the presence or absence of enhancement of tumor foci, and the morphology of CT and its surrounding tissue invasion can also be used to initially judge the benignity and malignancy of the disease. However, the final diagnosis still needs to be confirmed by surgical resection or kidney puncture to obtain histopathology. However, from the perspective of clinical experience, there are relatively few benign tumors in the kidney, and relatively more malignant tumors, that is, the incidence of kidney cancer is relatively high. Therefore, for patients with preoperative tumors, after evaluation, early surgical treatment is recommended to remove the tumor through surgery, together with some postoperative treatment, to achieve the purpose of improving the patient’s quality of life.