【Abstract】 Objective To investigate the status and relevance between selfmanagement behavior and sleep quality in elderly patients with type 2 diabetes mellitus.Methods 200 elderly patients with type 2 diabetes in the outpatient department of a thirdlevel grade hospital in chengdu city were selected as survey objects. Basic data questionnaire, selfmanagement behavior scale of type 2 diabetes and Pittsburgh sleep quality index (PSQI) were used to investigate and analyze the results. Results The selfmanagement score of the elderly patients with type 2 diabetes mellitus was (6018±1456), 124 cases (62%) of whom had scored＞7 points on the sleep quality index (62%), and the correlation analysis showed that the sleep quality was positively correlated with the selfmanagement level (rP=0211, P＜001). Conclusion The sleep quality index score was higher, the sleep quality was worse, and the selfmanagement behavior was worse. Medical staff should pay attention to the assessment of their sleep status, improve their sleep quality, and then improve their selfmanagement behavior when individualized health education for elderly patients with type 2 diabetes.