Abstract: Renal cell carcinoma is one of the most common tumors in the urinary system. Most of these tumors are malignant. The incidence of renal tumors has increased in recent years. Contrast-enhanced ultrasound examination is increasingly applied in clinics and has become a common diagnostic method for renal lesions. Contrast-enhanced ultrasound can clearly show the organization of tu -mor blood vessels and capillaries and provide dynamic observation of the blood perfusion status of normal human tissues and tumor tis-sues. This review discusses the situation and value of contrast-enhanced ultrasound in renal tumor treatment.