The constitution is the basic law of a nation as well as the guarantee of the people’s rights, which specifies various rights and duties of the governmental organizations, the people and the government. The amendment of the constitution is an important political engineering for a country and the change of the contents concerns the people’s benefit and happiness deeply as well as the government’s right limitation, so we shall conduct that solemnly and reasonably, particularly insisting on the principle that the minority is subordinate to the majority as well as the principle of freedom democracy procedures of obtaining a consensus of mostly majority. For 14 years, the Republic of China has witnessed 7 times of constitutional amendment. The frequent and large-scaled amendment is entirely different from the changelessness and invariability of the constitution. Particularly on August 23, 2004, the constitutional amendment was brought forward by the Legislative Yuan, and on June 7, 2005, the 7th constitutional amendment was passed by the task-oriented national assembly through referendum, as the important and profound reformation of the constitutional government in its history, because its contents focus on decrease half of seats of congress and the change of the central elector representative system, main axis of the reformation and the change of the central elector representative system, main axis of the reformation of the State Council as well as the abolishment of National Assembly and the plebiscite included constitution to carry out the national rights. Nevertheless the 7th constitutional amendment was completed in the sharpen dispute, some regrets are inevitable. This research shall review, and analyze and narrate the disputes arose from the 7th constitutional amendment, aiming at the background of the reformation of the Republic of China’s constitutional politics and the former 6 amendments, and bring forward some suggestions on the supporting measures as well as the prospect of the later constitutional respect, so as to establish the concept of the rule of constitution, and to make the constitutional living, shape the true meaning of the national dominion and show the spirit of the democracy.