Labor Insurance Act Article 27

An adopted son or daughter shall not be entitled to receive insurance benefits in case the adoption registration has been less than six months at the time when the contingency occurs.
中文原文 勞工保險條例第27條
被保險人之養子女,其收養登記在保險事故發生時未滿六個月者,不得享有領取保險給付之權利。

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