Purpose: This study aimed to establish the role of and to analyze the job of nurses in a regional emergency center using the Developing a Curriculum(DACUM) process, a job analysis technique. Methods: The DACUM committee was organized, and three workshops were held from June 1st to July 4th, 2016. One hundred two nurses in a regional emergency center participated in a survey from October 3rd to 10th, 2016. The frequency, importance and difficulty of each tasks and task elements in the DACUM were investigated on a Likert scale. Results: The roles of nurses in a regional emergency center were identified and the DACUM chart was developed with 6 duties, 29 tasks and 153 task elements. According to the survey, some tasks such as ‘CPR,’ ‘acute respiratory distress care,’ and ‘drug administration’ showed high frequency and importance or difficulty in all nursing units in common, and different results reflected the characteristics of each nursing unit were also found. Conclusion: The results showed the feature of the regional emergency center. Based on these results, it is necessary to develop educational programs for practice.