Abstract:In recent years, molecular targeted therapy for renal cell carcinoma (RCC) has developed rapidly, resulting in a variety of targeted therapies, which greatly improve the survival rate of patients with advanced metastatic renal cancer, but due to the presence of drug resistance, patients often cannot achieve complete remission. Only by grasping the mechanism of drug resistance can we overcome the drug resistance of targeted therapy and improve the therapeutic effect. In this paper, the resistance mechanism of molecular targeted therapy is discussed, which provides a theoretical basis for future clinical research work.