本文旨在探討技術型高中教師兼任總務主任工作所需的核心職能，採用文獻探討方式，並透過國內、外相關文獻進行闡述，並就現階段技術型高中總務工作組織編配、任務目的、所需職能等不同層面的觀點探討。研究者邀請三位有意願分享自己的總務主任為本研究受訪者，本研究運用半結構式訪談法進行資料蒐集、整理與分析，研究結果發現：（一）技術型高中總務主任所需之核心職能依其重要性排序分別為：專業知能、行政倫理、領導能力、行政管理、校園營造、永續創發、個人特質；（二）目前技術型高中總務主任所具備的七項核心職能僅達中等程度，均可透過參與研習或自我導向學習再加強與提升，特別是專業知能的部分。

This study is aimed to explore the core competencies required for teachers who serve concurrently as director of general affairs. The literature review was adopted by authors to carry out an in-depth discussion of the core competencies necessary for the teachers with participation in general affairs in the light of the work content, purposes of task, and requirements of director of general affairs in technological high schools. The authors have invited three director of general affairs as the research subject, and have gathered data via semi-structural intensive interviews for summarization and analysis. Three participants were highly interested in sharing their work experience with the authors. The findings showed that, (1) The core competencies required for the chief of general affairs in technological high school were listed in accordance with their significance respectively: professional knowledge and skills, administrative ethic, leadership, administration management, construction of campus, sustainable innovation and individual traits; (2) The seven core competencies possessed by the chief of general affairs in technological high school can only meet the requirements of moderate level. All competencies should be strengthened and upgraded by on-job training or self-directed learning, the professional knowledge and skills in particular.