Primary and Junior High School Act Article 17

If there is factual evidence of a school principal’s unsuitability for appointment, in accordance with the law, the principal shall be removed from their position, transferred to another position, or dealt with in another appropriate way by the competent authority for the school; in accordance with the law, a principal of a private school shall be removed from their position, transferred to another position, or dealt with in another appropriate way by the board of directors of the school legal person.The regulations governing the determination of the existence of factual evidence of incompetence referred to in the preceding paragraph, the way to deal with the situations referred to there, and other associated matters shall be prescribed by the central competent authority.
中文原文 國民教育法第17條
學校校長有不適任之事實者,公立學校校長,由各該主管機關依法解除職務、改任其他職務或為其他適當之處理;私立學校校長,由學校法人董事會依法解除職務、改任其他職務或為其他適當之處理。
前項不適任事實之認定、處理方式及其他相關事項之辦法,由中央主管機關定之。

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