Nowadays the prevalence of Metabolic Syndrome (MetS) affects many middle-age people in China. MetS is associated with the risk of type 2 diabetes and cardiovascular disease. Identifying the potential risk factors contribute to MetS is very important for preventing cardiovascular disease. The associations between lifestyles and prevalence of MetS are extensively studied by researchers. A cross-sectional study, which was conducted by Strand, MA. surveyed 659 subjects in Yuci, China in 2012. The proportional odds model was applied to determine the associations between lifestyles and MetS in three Chinese middle-age groups. The results demonstrated that doing daily exercise was one of the best method to treat MetS. Moderate alcohol consumption could prevent MetS in age group born in 1956. Occasionally milk consumption could prevent MetS in age group born in 1964, while it did not help age groups born in 1960-1961 and in 1956.