PURPOSE: The aim of this study was to identify nurses' role in the delivery of health guidance service within the annual health guidance membership service. METHODS: Dynamic job analysis process was applied with vertical job analysis and horizontal job analysis through a focus group workshop and expert survey. RESULTS: As a result of this study, job description was established with 4 duties, 11 tasks, 60 task elements. Major duties consisted of 'professional nurse practice', 'coordination and cooperation', 'education and consultation', and 'administrative work and improvement'. A job process map was also framed. CONCLUSION: The results can be used to establish nurses' role in providing health care service. Ongoing research on nurse's role as a health guider will be a fundamental base for health care service development and will contribute to expansion of common health management services.