Objective To study the prevalence of body overweight and obesity in Shanxi province's adults and its distribution in age, sex and economic development status. MethodsA total of 7229 adults from the 2002 China National Nutrition and Health Survey of Shanxi province's database were analyzed. The criteria in the Guidelines for Prevention and Control of Overweight and Obesity in Chinese Adults were applied to those aged 18~60 years. ResultsThe overall prevalence was 26.2% for overweight and 6.9% for obesity. The prevalence of overweight and obesity in male were 25.8% and 5.4%, and the prevalence of overweight and obesity in female were 26.5% and 7.9%. The prevalence rates of obesity were significantly higher in female than in male. The prevalence rates of overweight and obesity were different among age groups and economic development status. ConclusionOverweight and obesity had become prevalent in Shanxi province's adults, and obesity might continue to increase in future. As the economy's progress, prevention and control of the overweight and obesity should be urgently needed.