Objective:To explore the effect of teach-back method combined with motivational interviewing in diabetic patients.Methods:From June 2018 to June 2021, 188 diabetic patients admitted to Henan Provincial People's Hospital were selected as subjects by convenience sampling. The subjects were divided into the intervention group and the control group, with 94 cases in each group, according to the number of visits to the hospital at the time of admission. The patients in the control group were given routine diabetes health education, and the patients in the intervention group received the teach-back method combined with motivational interviewing. The blood glucose, knowledge, attitude and practice, self-management ability and quality of life were compared between the two groups before and after the intervention.Results:The fasting blood glucose, 2-hour postprandial blood glucose of the two groups of patients after intervention were lower than those before intervention, and the fasting blood glucose, 2-hour postprandial blood glucose of the intervention group after intervention were lower than those of the control group, and the differences were all statistically significant ( P<0.05) . The knowledge, attitude, practice scores and total scores of the two groups after intervention were higher than those before intervention, and the knowledge, attitude, practice scores and total score of the intervention group after intervention were higher than those of the control group, and the differences were statistically significant ( P<0.05) . The dimension scores of self-management ability of the two groups after the intervention were higher than those before the intervention, and the dimension scores of self-management ability of the intervention group after intervention were higher than those of the control group, with statistical differences ( P<0.05) . The dimension scores and total score of quality of life in the two groups after intervention were lower than those before intervention, and the dimension scores and total score of quality of life in the intervention group after intervention were lower than those in the control group, with statistical differences ( P<0.05) . Conclusions:The teach-back method combined with motivational interviewing can effectively improve the knowledge, attitude, practice and self-management ability of diabetic patients, which is beneficial to the improvement of blood glucose control and quality of life, and is worthy of clinical promotion.