Objective To improve the understanding and differential diagnostic level of imaging features of hypervascular renal tumors by investigating the imaging characteristics of CT scan and three phase dynamic enhanced. Methods A total of 105 cases including 79 cases of renal clear cell carcinoma and 14 cases of lipoprotein-deficient angiomyolipoma, 8 cases of chromophobe cell tumor and 4 cases of eosinophil adenoma were analyzed retrospectively. The cases were all confirmed as renal tumors by pathology surgery. Results (1) The probability of occurrence of cystic necrosis of clear cell carcinoma(87.34%) was significantly higher than that of the other three types of tumors. (2) The central scar is helpful to the diagnosis of eosinophil adenoma, which can be regarded as its CT features, but not the specific sign. (3) "Angular sign" was statistically significant for the qualitative diagnosis of tumors. (4)The diffrence of CT values between chromophobe cell tumor and other three kinds of tumors was significant statistically. The difference of CT values between eosinophil adenoma and the other three groups in parenchymal and excretory period was statistically significant. The difference of CT values between lipoproteindeficient angiomyolipoma and renal clear cell carcinoma was not statistically significant. Conclusion CT scan and enhancement are worth of diagnosing hypervascular renal tumors. It is helpful to guide the clinical and prognosis.