公務員學院院長須履行學院提升公務員培訓的使命，特別是在確保「一國兩制」準確全面落實方面擔當政府的骨幹。具體而言，職位的主要職務與職責如下：
(a) 主管公務員學院，並制訂和倡導政策及策略，以提供和加強公務員培訓，包括國家《憲法》和《基本法》、國家安全、國家事務研習和其他切合整體公務員培訓需要的培訓；
(b) 制訂適用於整體公務員的培訓相關政策和規則；
(c) 向公務員事務局局長和常任秘書長及各局／部門提供有關培訓和發展事宜的意見和建議，包括為推展接任計劃而進行的培訓和發展工作，以及落實各項有關培訓的措施；
(d) 監督為公務員培訓諮詢委員會提供的秘書處支援服務，以及監督有關建議可適切落實；
(e) 擔任主要聯絡人，與公務員培訓和發展相關的人士(特別是相關範疇的專業人士和專家)及內地和其他地方的相關機構加強聯繫，探討協作空間；及
(f) 擔任訓練主任職系的首長，監督學院的行政工作和資源管理，確保其運作具效率和成效。

The Head of the Civil Service College is required to take forward the mission of the College in enhancing training for the civil service, particularly as the backbone of the Government in ensuring the accurate and comprehensive implementation of “One Country, Two Systems”. Specifically, the major duties and responsibilities of the post are -
(a) to head the Civil Service College, and formulate and spearhead the policy and strategy in delivering and enhancing civil service training, including training in the country's Constitution and in the Basic Law, national security, national studies and other training to meet the service-wide training needs of civil servants;
(b) to formulate training-related policy and rules for service-wide application;
(c) to tender advice and recommendations to the Secretary for the Civil Service and the Permanent Secretary for the Civil Service, and to bureaux/departments, on training and development matters, including training and development for succession management, and implement various training-related initiatives;
(d) to oversee the secretariat support to the Civil Service Training Advisory Board, and the implementation of its recommendations as appropriate;
(e) to serve as the focal point of contact with counterparts on civil service training and development, particularly professionals and experts in relevant fields, and relevant institutions in the Mainland and other places, in promoting connections and exploring collaboration; and
(f) to serve as Head of the Training Officer Grade, and oversee the administration and resource management of the College to ensure its efficient and effective operation.