en روانشناسی Psychology پژوهشي Original Research Articles <div style="text-align: justify;"><strong>Objectives:</strong> The present study investigated the role of psychoeducation in improving mental health literacy and adaptation in patients with type 2 diabetes.&nbsp;<br> <strong>Methods:</strong> The present study was an interventional study with pre-test, post-test and follow-up design with a control group. The study population included patients with type 2 diabetes who referred to Iran Hospital. Based on the research method and considering the missing data, a sample size of 80 people was considered. In total, 40 patients were selected as the intervention group and 40 subjects as the controls by purposeful sampling method. The subjects were randomly assigned into the two groups. The obtained data were collected by O&rsquo;Connere and Casey&rsquo;s mental health literacy questionnaire and psychosocial compatibility questionnaire of Moro and colleagues. The purpose of psychological education in this study, which was used as the intervention, was Cognitive Behavioral Therapy (CBT). Training was performed in a group format. Therapeutic sessions were 11 one-hour sessions.&nbsp;<br> <strong>Results:</strong> The obtained results suggested that the effect of intervention in the&nbsp; post-test phase was 57% on mental health literacy and 48% in follow-up. In addition, the effect of intervention on adjustment in the post-test phase was 39%, and in the follow-up phase 38%.<br> <strong>Discussion: </strong>Psychological trainings like CBT can predict the information that is more important in diabetes self-management. Increasing the mental health literacy rate for psychiatric disorders associated with type 2 diabetes, improves compatibility, which will improve the quality of life and lifestyle of people with type 2 diabetes.</div> Cognitive Behavioral Therapy, Adjustment to illness, Mental health literacy, Type 2 diabetes 395 404 http://irj.uswr.ac.ir/browse.php?a_code=A-10-755-1&slc_lang=en&sid=1 Alireza Karimpour Vazifehkhorani a.karimpour92@gmail.com. 0000-0003-2272-3202 No Health Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran. Mansoureh Karimzadeh mansurehkarimzadeh@gmail.com 0000-0002-7124-8674 No Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. Mohsen Poursadeghiyan mo.poursadeghiyan@uswr.ac.ir 0000-0003-3606-7613 No Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran. Fatemeh Rahmati-Najarkolaei fatemeh_rahmati@bmsu.ac.ir 0000-0002-8321-800X Yes Health Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.