Diabetes Mellitus is a metabolic disease characterized by blood sugar levels that exceed normal limits. This disease shows a continuously increasing prevalence in various countries every year. According to data from the World Health Organization (WHO), around 422 million people worldwide suffer from diabetes, with most sufferers living in low- and middle-income countries, and 1.5 million deaths each year are caused by diabetes. Therefore, one of the measures that can be taken for individuals experiencing elevated blood glucose levels is the use of autogenic relaxation techniques. The purpose of this study is to provide comprehensive nursing care for Mrs. N with type II diabetes mellitus through autogenic relaxation techniques. The method used in this study is a descriptive case study method, managing one client using a nursing process approach. The results of the study after applying the autogenic relaxation technique to Mrs. N with type II diabetes mellitus over three sessions showed a decrease in blood glucose levels. The conclusion of this study is that the autogenic relaxation technique is effective in lowering blood glucose levels.