The quality management is emphasized for the success of cyber university which is expanded rapidly through applying the information technology. For the cyber university the e-Learning instructor who implements the e-Learning is the core factor of the quality management. The objective of this study is to provide the direction and guideline for the instructor support service for the quality improvement of the cyber university. The role of e-Learning instructor and the elements of the cyber university instructor support service supporting this role are clarified through pre-study. The importance, presence of the cyber university instructor support service and the differences between importance and presence of the cyber university instructor support service are surveyed and analyzed through collecting the answers of prepared questionnaire. The results of this study are summarized as follows: Firstly, the importance of the cyber university instructor support service is highly expressed at all aspects; the most important elements are evaluation and the interaction is lowest evaluated. Secondly, the survey result of the presence of cyber university instructor support service can be summarized by; the highest presence is evaluation and the lowest is reward system. Thirdly, the importance is highly evaluated than the presence on every element of the cyber university instructor support service and meaningful differences are surveyed. The importance is recognized comparatively highly recognized than the presence. Fourthly, the analyzing result of importance-presence analysis matrix shows that reward system, instructor training and course are the most important elements.