The purpose of this study was to identify instructors' teaching competency in cyber university context. The study employed delphi methods and conducted two rounds of survey. The participants of the delphi was 30 experts in the field of educational technology and instructors in cyber universities. The results showed that there are five categories for cyber university instructors' teaching competency, including fundamentals, knowledge of cyber education, instructional design, contents development, and class management. Specifically, 45 items were developed as a competency indicator. The results indicated that these competency model could be used as a guidance for competency development, and should be refined as a instructor diagnosis tool so that individual instructors could understand their current status and needs to improve their teaching competency.