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目的:探讨久坐行为（SB）、体力活动与腹型肥胖的相关性。方法:回顾性纳入2017年10月至2019年2月在中南大学湘雅医院健康管理中心体检的18~65岁成年人，收集其生活方式问卷，根据是否具有久坐行为、中高强度体力活动（MVPA）是否达标将研究对象分成四组：SB≤6 h/d、MVPA≥150 min/w；SB≤6 h/d、MVPA6 h/d、MVPA≥150 min/w；SB>6 h/d、MVPA6 h/d, MVPA<150 min/w. The relative risk of abdominal obesity for each SB-MVPA combination was calculated.Results:A total of 5, 789 physical examination subjects were included in the study, with an abdominal obesity rate of 28.52%. People with abdominal obesity were older, had a lower level of education and a higher marriage rate, smoked more, consumed less fruit, slept less, and sat more (all n P6 h/d, MVPA<150 min/w group (n OR=1.379, 95%n CI: 1.111-1.711). The results of the combined analysis of the occupational SB(W) and the MVPA showed an increased risk of abdominal obesity in the SB(W) ≤6 h/d, MVPA6 h/d, MVPA<150 min/w group (n OR=1.256, 95%n CI: 1.043-1.513), after adjusting for possible confounding factors.n Conclusion:Lack of physical activity, as well as sedentary behavior are associated with an increased risk of abdominal obesity. For the working population, sufficient MVPA can effectively decrease the risk of abdominal obesity caused by occupational sedentary behavior.