The purpose of this study is to investigate various opinions on changes and revisions in the Medical Technician Act, to compare the curriculum of radiological technologist and physicians of dentists, and to compare the definitions and scope of work of radiological technologist in Korea and abroad. From the information, The goal is to review whether the phrase "guidance of a doctor or dentist" specified in the definition of the "Act on Medical Technicians, etc." is realistically appropriate. rediological science student are greater than medical students. In addition, radiological technologists are continuously developing their competencies for new knowledge and skills through continuing education in clinical fields. In particular, radiological technologist are making steady research efforts to reduce patient exposure and improve medical image quality. As a result of this investigation, ti ts considered that the term "guided by a doctor or dentist" as currently defined in th "Act on Medical Technicians, etc." may need to be revised in consideration of the professionalism of the radiological technologist.