Primary and Junior High School Act Article 3

Citizens between 6 and 15 years of age shall receive primary and junior high school education; citizen’s compulsory enrolment is governed by separate legislation.
中文原文 國民教育法第3條
六歲至十五歲之國民,應受國民教育;其強迫入學,另以法律定之。

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