This qualitative research aimed to investigate the current radio broadcasting situation to promote Buddhism propagation in Nakhon Ratchasima Province, Thailand, and to develop a radio broadcasting model to promote Buddhism propagation in Nakhon Ratchasima. Purposive sampling was employed to select 106 informants in this study. The informants were classified into three groups: experts, practitioners, and general informants. Data were collected by using a questionnaire, an observation form, an interview guide, and a focus group discussion form. The data were presented with descriptive statistics. The findings showed that most radio stations in Nakhon Ratchasima received the signals of Buddhism propagation content from Radio Thailand (central). The content included preaching, dharma lecture, sermons of the Buddha, and anecdotes about Buddhist religious days. Radio stations in Nakhon Ratchasima that produce original content to propagate Buddhism were moderated by monks or devout laymen with technicians assisting with live or recorded broadcasting. Regarding the model for radio broadcasting to promote Buddhism propagation in Nakhon Ratchasima, there were eight significant elements. The first element was the target group with age ranging from 55 – 65. The second element was the content of the programs, including how to be good sons and daughters to parents, how to be good students to teachers, how to be good friends, how to be good citizens, how to be good disciples to the Buddha, nature of life, principles in life, and happy life. The third element was the presentation methods, including magazine programs, talk programs, and question and answer programs. The fourth element was moderators, including monks or laymen or both monks and laymen with Buddhism knowledge and the ability to present the content in an interesting manner, use easy language, and communicate in central Thai, Pali, Sanskrit, and Buddhist expressions accurately. The fifth element was language; moderators should use the central Thai language as the main communication medium while inserting Korat dialect, Korat folk songs, and Lae songs in the Korat dialect. The sixth element was sound, including speech, audio narration, music, and sound effect. The seventh element was the length; the suitable length should be 20 – 30 minutes. The eighth element was broadcasting channels, including Facebook Live, Podcast, YouTube channels, and Line.