Constitution of the Republic of China (Taiwan) Article 69

In any of the following circumstances, the Legislative Yuan may hold an extraordinary session:1. At the request of the President of the Republic;2. Upon the request of not less than one-fourth of its Members.
中文原文 中華民國憲法第69條
立法院遇有左列情事之一時,得開臨時會:一總統之咨請。
二立法委員四分之一以上之請求。

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