The purpose of this study was to clarify the NCDA (Nippon Sport Science University Coach Developer Academy) program, in which coach developers from all over the world participate. In order to achieve this objective, we analyzed descriptions from the “Project commissioned by Japan Sports Agency Support for the Formation of International Sport Academies 2014-2020 project report” published by NCDA and “Learning to be a coach developer”, written by NCDA participants and management staff as a reflection of the program. After screening the descriptions of the NCDA program and the reflections on the program by participants and management staff, we analyzed them using a text mining technique. The study findings were as follows:<br> 　1) In terms of learning by participants, reflecting on past experiences of coach development during the NCDA program was interpreted as an opportunity to change their mold. With regard to the learning environment, the NCDA program provided participants with an opportunity for self-reflection through their stay in Japan, which was a foreign country for them. This suggests that attending a workshop in an environment that is as separate from an everyday context allows more effective self-reflection and group work. 2) Although there were more male than female participants, and most of them were active in Europe, there were no significant differences in the affiliation of the participants. Compared to the values of the population involved in sports coaching, this suggests that those engaged in the NCDA program are not a highly homogeneous group but differ in sports specialties, organizational affiliations, gender, and region of activity. Furthermore, the diversity of those involved in the program was interpreted as a positive topic in the surveyed literature. Therefore, to obtain new learning in a highly diverse group, participants must hold an assumption that cooperation among individuals with different views enhances collective intelligence. 3) In terms of the specific learning content of the NCDA program, which involves observation and review of coaches, suggests that the program was designed to cultivate the qualities and abilities required of coach developers not in a seminar or lecture but in a coaching field. Since the actual situation of coach developers in Japan who develop coaches in the coaching field has not been clarified, it can be inferred that investigation of this issue and examination of its impact will provide helpful knowledge for coach development activities in Japan.