目的　了解糖尿病 (DM)患者对DM知识知晓情况 ,为DM患者的健康教育提供依据。方法　采用单纯随机抽样的方法 ,对芜湖市新芜区天门山街道DM患者进行调查。结果　DM知识知晓率在年龄、性别、文化程度、DM家族史分布上差异均有显著性。其中年轻者、男性、文化程度高、有DM家庭史的患者DM知识知晓率较高。结论　进行DM健康教育时 ,应根据不同年龄层、不同文化程度以及不同家族史背景 ,采取不同的教育方式。 Objective To understand the DM knowledge of patients with diabetes mellitus (DM) to provide the basis for the health education of DM patients. Methods A simple random sampling method was used to investigate DM patients in Tianmenshan Street, Xinwu District, Wuhu City. Results There was a significant difference in the distribution of DM knowledge in age, sex, education level and DM family history. Among them, young people, men, high education, DM family history of patients with higher awareness of DM knowledge. Conclusion DM health education should be based on different age groups, different levels of education and different family history background, take a different approach to education.