Abstract: In recent years,the incidence of global malignant tumors has gradually increased.Malignant tumors occupy an increasing proportion in the disease spectrum.With the advancement and development of medical standards,the survival time of many patients with malignant tumors has been greatly extended.The level of renal function is closely related to the prognosis of patients with malignant tumors,and its importance is increasingly prominent.So far,for patients with malignant tumors,there are many clinical evaluation indicators for renal function.This review will elaborate and discuss renal function assessment in patients with malignant tumors.