Objective To analysis the relationship of waist circumference with metabolic syndrome(MS)in two communities in Nanning,Guangxi.Methods 1072 cases in two communities were divided into abdominal obesity group with 406 cases and control group with 666 cases and metabolic syndrome primary elements were measured,then the prevalence was compared.Results ① The prevalence was 3.36% in abdominal obesity group,there was a significant difference between the two groups.② The prevalence of obesity,hypertension,hyperglycaemia,high triglyeride,low-high density lipoprotein-cholesterol has a significant difference in abdominal obesity group.③There was significantly association between waist circumference and body mass index(r=0.607,P0.0001),systolic blood pressure(r=0.240,P0.0001,diastolic blood pressure(r=0.274,P0.0001),fasting postpartum glucose(r=0.075,P=0.015),triglyeride(r=0.165,P0.0001)and high density lipoprotein-cholesterol(r=-0.201,P0.0001).Conclusion A significant difference between waist circumference and the prevalence of metabolic syndrome was found here.The study also showed a significant difference between waist circumference and elements of metabolic syndrome.