A martial arts community is a community that is popular with people because humans always have the instinct to protect themselves. Muay Thai selfdefense is a martial art for all people, both men and women, which is quite simple and can be done anywhere from different backgrounds, of course making a different communication pattern but still having the same goal, this is what makes researchers interested in see communication patterns that occur in the Muay Thai community in Yogyakarta. The research method used in this research is qualitative method. The location of this research was carried out at the Rambo Muay Thai Yogyakarta Community and aims to describe the communication patterns that exist in the Rambo Muay Thai Yogyakarta community. Data collection techniques carried out were in-depth interviews and participant observation. Descriptive studies studied focused on communication between trainers and members of the Rambo Muay Thai Yogyakarta community. The result of research The pattern of Rambo Muay Thai community communication has two types of communication, namely group communication and interpersonal communication. Almost all processes that occur non-formal. Internal communication between coaches and community members is done through direct communication, face to face, such as during training, learning, routine meetings and gatherings, while in the external communication process only group communication. Formal and direct communication (face to face) only occurs during event activities in a particular event that is directly related to the community. In addition to these activities, both internal and external communications from the Rambo Muay Thai community also communicate through social media such as WhatsApp, Twitter, Facebook and Instagram groups.