In the field of diabetes mellitus, medical practice and medication counseling that elicits self-management by patients are desired. Thus, the improvement of communication skills of healthcare professionals and adopting an interdisciplinary approach to diabetes patients are considered important.In the COVID-19 pandemic era, the adoption of telemedicine and remote medication counseling to actual clinical practice has become an important issue; however, training opportunities for the skills required, especially in the diabetes field, are scarce. Therefore, we held an online training session for healthcare professionals to improve their telemedicine and remote medication counseling skills.