This paper presents an investigation into the limitations and improvement measures of the self-regulation system for the content created by broadcasting stations. As for methodology, the investigator conducted an interview with the practitioners in the broadcasting industry and two experts. As a result, the regulation criteria were ambiguous due to the limitations of self-regulation for the content of broadcasting stations, the personnel in charge of regulation lacked professionalism, and the regulation procedures were not proper. In addition, program grading was not appropriate, and the time slot for youth protection was not right. There was a need to establish a regulation consultation body and reinforce the roles of National Association of Broadcasters to solve those problems. It is also needed to deploy and educate human power in the regulation departments of broadcasting stations, promote its efficient operation, and supplement the current grading system for broadcasting program.