This study was conducted to identify the important research fields and areas for solving current and future health care problems in Korea and to develop priorities in selected research fields and areas. Delphi technique was used to collect expert's opinion. Questionnaire surveys were carried out three rounds, and 29 panel members were invited. From second questionnaire survey, we proposed the median value of score and respondent's score in each item. Prevalence, seriousness and manageability were the main criteria to select the research fields and areas and in priority setting. In health fields, 20 research fields were selected and population, family planning, and environmental pollution were the most important research fields among them. In each research field, several research areas were selected. Because our study had 85 research areas, the priority of research areas was selected in each research fields.