The development of radio media in line with the advancement of information technology. The development and advancement of the technology caused the radio position as a part of the communication medium to slowly shift, which was previously an important media after television. People tend to move to more practical and more sophisticated media, not just limited to audio media but also as visual media. Therefore, in order to keep the radio popular by the public, radio managers must follow the trend of current media communication and that is what Radio Voice of As'adiyah does so that it can still exist and be loved by society until now. Radio as an information medium has been utilized by the Pesantren As'adiyah since 1968. This research aims to analyze the effectiveness of preaching of the da'wah through Radio, a study of Radio Suara As'adiyah to get an overview of the objective effectiveness of the religious information presented. Propose to improve the process of preaching of the da'wah through radio. This research uses a qualitative approach. Qualitative methods are used in this research as the problems investigated are complex, dynamic and meaningful. The effectiveness of da'wah presentation lies in the distributors' knowledge, credibility of the scholars and the source of the resource, the contents of the material conveyed. Radio Suara As'adiyah has an announcer who understands the knowledge in guiding the event. Nara resources are chosen based on the scientific and exemplary character of the community Bugis called Gurutta. Further findings that da'wah material delivered is based on the classic book.