Objective To explore the value of ultrasonography combined with visceral fat detector detection in the diagnosis of nonalcoholic fatty liver.Methods A total of 60 individuals suffering from such a condition who were treated at our hospital between January 2022 and June 2023 were chosen as the observation group,while 60 healthy subjects served as the control group.Ultrasonography was used for all examinations,along with a visceral fat detector.Receiver operating characteristic(ROC)curves were used to evaluate the value of ultrasonography and visceral fat detector detection of two inspection methods in the diagnosis of nonalcoholic fatty liver disease.Results The observation group's visceral fat volume was significantly greater than the control group's,with statistically significant(P<0.05).The observation group's CAP value was significantly higher than the control group's,with statistically significant(P<0.05).The ultrasonic diagnostic instrument and visceral fat detection had AUC areas of 0.825 and 0.849,sensitivity at 0.737 and 0.875,and specificity at 0.766 and 0.823 respectively.The AUC area of ultrasonic diagnostic instrument and visceral fat detection were 0.825 and 0.849,the sensitivity was 0.737 and 0.875,and the specificity was 0.766 and 0.823,respectively.The AUC area,sensitivity and specificity were 0.926,0.913 and 0.853,respectively.Conclusion Ultrasonic diagnostic instrument combined with visceral fat detector detection has a certain value in the diagnosis of nonalcoholic fatty liver,which is worthy of clinical application.