Objective:To screen the prevalence of metabolically obese but normal-weight (MONW) in physical examination population,and to detect blood pressure (BP),fasting blood glucose (FPG) and fasting insulin (FINS) of MONW and investigate the correlation between visceral fat area (VFA) and insulin resistance. Methods:A total of 4 552 people,who had underwent investigations for body component measurement in the health management center of the First Affiliated Hospital of NJMU,were chosen to screen the prevalence of MONW. From the 4 552 people,794 were randomly selected to detect BP,FPG and FINS at the same time. We calculated the value of insulin resistance index (HOMA-IR) and analyzed the relationship between HOMA-IR and VFA. Results:The MONW morbidity of the Health Management Center of the First Affiliated Hospital of NJMU was 11.25%. The incidences of abnormal BP and FINS in MONW were 30.11% and 3.26%,respectively,which were both higher than those of the healthy group (P < 0.001). No matter the body mass index (BMI) was in the normal range or abnormal,HOMA-IR of the VFA ≥ 100 cm2 group was higher than that of the VFA < 100 cm2 group (P < 0.05). Conclusion:MONW is common in physical examination people. The proportion of abnormal metabolic state and insulin resistance were increased in MONW. Its mechanism may be related to the accumulation of visceral fat.