Teamwork is one of the most important components of non-technical skills in cardiopulmonary resuscitation. Efforts have been made more than two decades ago to clarify the dimensions of teamwork in a resuscitation situation. The purposes of this group are to share the experiences and knowledge of experts on the factors that influence teamwork, training programs or guides to promote teamwork, teamwork assessment tools, and teamwork barriers to resuscitation. I hope that by sharing teamwork knowledge and skills, we will play an important role in promoting the care of critically ill patients. so you can share your experiences, knowledge, and suggestions for improvement in CPR.