Objective:To explore and compare the relationship between the different parts of abdominal fat as determined by ultrasonic measurements and the cardiovascular risk factors. Methods:A total of 130 males from the authors’ affiliated hospital were involved,anthropometric and metabolic parameters were measured. Each subject underwent ultrasonography to estimate the visceral fat thickness in the mid-abdominal cavity(VFT-M),the visceral fat thickness in the upper abdominal cavity(VFT-U)and mesenteric fat thickness(MFT). Results:All of the abdominal fat thickness were positively correlated to body mass index(BMI),waist circumference(WC),hip circumference(HC),waist-hip ratio(WHR),fasting insulin(FINS),triglyceride(TG),and negatively correlated to age,high-density lipoprotein(HDL-C),the VFT-U and MFT were positively correlated to insulin resistance index(HOMA-RI),the MFT was positively correlated to uric acid(UA). The partial correlation analysis after adjusting for age,BMI and WC showed that:VFT-U was positively associated with HOMA-IR and TG;MFT was positively associated with FINS,HOMA-IR and was negatively associated with HDL-C;VFT-M showed no association with neither cardiovascular risk factors. The stepwise multiple linear regression showed that:VFT-U and MFT,especially the MFT,were more valuable for the prediction of cardiovascular risk factors. Conclusion:VFT-U and MFT are good correlated with cardiovascular risk factors compared with VFT-M. VFT-U and MFT are associated with different cardiovascular risk factors. Different parts of abdominal fat recognized and measured by ultrasonography show a great clinical significance.