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To investigate the prevalence and relative factors of metabolic syndrome (MS) for the heavy industry workers in northern coastal district of China.We performed an observational study on the heavy industry workers in Leting County, Hebei Province of China. The standard epidemiologic method for cardiovascular diseases was used. Items of survey included questionnaire, physical examination, fasting blood sample collection. Metabolic syndrome was defined in accordance with the International Diabetes Federation (IDF) criteria in 2004.Totally 2045 participants (men 1651, women 394) with aged 37.5 ± 8.2 yrs were included in the data analysis. The mean age was 37.3 ± 8.3 yrs and 38.1 ± 8.0 years (P > 0.05) for men and women respectively. The total prevalence of MS was 19.1%, for men and women were 20.4% and 13.7%, respectively (P = 0.002). When compared the differences of prevalence of MS between age groups, there were no significant differences in men, but not in women. In the subjects with MS, a higher prevalence of alcohol drinking, snoring, higher salt taste, lower dairy intake and lower tea drinking were observed. The individual components rank order of MS in men was raised triglycerides, raised blood pressure, raised fasting glucose and reduced HDL cholesterol, and the order in women was raised triglycerides, reduced HDL cholesterol, raised blood pressure, and raised fasting glucose.The prevalence of MS in occupational population of heavy industry was higher than normal population, especially in young men below 30 years old. Unhealthy lifestyle such as alcohol drinking, higher salt taste, less drinking tea and so on should be the risks of higher prevalence of MS. Intervention to the risk factors of MS would be important in the prevention and control of cardiovascular diseases.