[目的 ]　探讨肥胖、高血压与中、老年人糖尿病患病率的关系。 [方法 ]　采用问卷和体检的方法对遵义市 40岁及以上年龄的 2 2 34名居民进行流行病学调查。 [结果 ]　超重和肥胖组的糖尿病和糖耐量低减患病率高于正常体重和低体重组 ;肥胖体型组 DM和 IGT患病率分别为 8.86 %和 9.36 % ,均高于正常体型组 ;糖尿病和糖耐量低减患者的收缩压和舒张压也明显高于对照组 (P均 <0 .0 0 1)。[结论 ]　肥胖 (尤其腹部型肥胖 )、高血压对中、老年人糖尿病和糖耐量低减患病率有影响。 [Objective] To investigate the relationship between obesity, hypertension and the prevalence of diabetes in the elderly. [Methods] The epidemiological survey of 2234 residents aged 40 and over in Zunyi City was conducted by questionnaire and physical examination. [Results] The prevalence of diabetes mellitus and impaired glucose tolerance in overweight and obesity group was higher than that in normal body weight and low body weight group. The prevalence rates of DM and IGT in obese body type were 8.86% and 9.36%, respectively, which were higher than those in normal body type. Diastolic and diastolic blood pressure in patients with diabetes and impaired glucose tolerance were also significantly higher than those in the control group (all P <0.01). [Conclusion] Obesity (especially abdominal obesity) and hypertension have an impact on the prevalence of diabetes mellitus and impaired glucose tolerance in middle-aged and elderly people.