本文係從憲法理論之角度，針對1999年憲法增修條文所引發之憲法爭議，進行「違憲審查式」之分析輿論證，其內容主要分成三大部分 : 一、探討憲法修改程序之合憲性問題。二、剖析修憲界限與憲法修改之合憲性問題，包括國大代表及立法委員任期延長之合憲性問題，以及比例代表選舉制與民主原則及選舉平等原則之關係。三、論述憲法條文之違憲審查與宣告方式。最後，作者從比較宏觀的角度，指出此次修憲背後所潛藏之憲法結構缺陷，並對此次修憲作一總結性的評價。

This article provides a critical analysis of the constitutional amendments of 1999. It is divided into three sections. First, it reviews the constitutionality of the amendment process. Second, it examines, from a democratic perspective, the constitutionality of the provisions of the constitutional amendments that extend the terms of the parliamentarians. Third, it analyzes how the grand justices declare amendments unconstitutional. Finally, the author poses some viewpoints about the constitutional reforms.