Organization Act of the Ministry of Education Article 6

If necessary, the MOE may assign personnel to work at a diplomatic mission with the approval of the Executive Yuan and in accordance with the provisions of the Organization Act of Diplomatic Missions of the Republic of China (Taiwan).When necessary, individuals at junior college or higher level educational institutions who are qualified professors may be appointed to join the personnel assigned to work at a diplomatic mission overseas referred to in the preceding paragraph and serve as the head of the education division of a diplomatic mission. Each appointment of such individuals is not permitted to exceed three years; at the end of this term, they may be offered a further temporary appointment.The total period of the temporary appointments referred to in the preceding paragraph is not permitted to exceed six years.
中文原文 教育部組織法第6條
本部為應業務需要,得報請行政院核准,派員駐境外辦事,並依駐外機構組織通則規定辦理。
前項駐外人員擔任駐外機構教育單位主管職務者,必要時得借調專科以上學校具教授資格者聘任之;每次聘任期間不得超過三年,期滿得再行借調。
前項借調期間合計不得超過六年。

English translation for reference only; the Chinese text prevails. Not legal advice.