On March 2014, the Sunflowers Students Movement put forward the demand of "convening a civil constitutional conference". After ending the occupation, the Movement issued the Declaration of the Movement for New Constitution, calling for the promotion of large-scale constitutional amendment. The Democratic Progressive Party and the Kuomintang had successively responded to support and establish the Constitutional Amendment Commission of the Legislative Yuan. Various non-governmental organizations began to unite on the issue of constitutional reform. Among them, the Alliance of Civil Groups for Constitutional Reform and the National Constitutional Reform Alliance are the most active toward attitude and action. It seemed as if a new Constitutional moment was coming. The constitutional amendment procedure stipulated in the Constitution is as which the Legislative Yuan initiatives a draft constitutional amendment to the citizens for referendum. Therefore, the choice of the constitutional amendment issues and the drafting of the draft constitutional amendment are the accountabilities of the Legislative Yuan. However, the draft constitutional amendment should be passed by the referendum of the citizens. Whether or not the Taiwanese people support the amendment of the constitution and even has the will to vote in referendum are the core elements about the eventual success or failure of constitutional amending. So people must have a general understanding of the issue of constitutional amendment and a sense of participation and obligation toward constitutional amending. Amending the constitution is a dialectical process of strategic interaction between constitutional professional knowledge circle and political powers. The rules of the game related to political power have always been concerned by constitutional scholars and political parties. However, as the sovereign of the state, the people have the ultimate power of decision. Constitutional issues may not be related to the rights and interests of individuals or particular groups of citizens, and the deliberative process of constitutional amending is far from casually participating by the general population. Therefore, how to make civic participation falling into the procedure and process of actual participation based by the assumption of values and concepts, it needs to be in accordance with legal procedures of amending the constitution and the design, planning and coordination of the mechanism outside the system. Though is is helpful for strengthening the legitimacy of constitutional amending, it may not form a consensus and binding procedure due to the lack of legal sources for the relevant mechanism. But even there is a lack of law sources, if the constitutional amending authority is willing to open for civic participation, the goal of strengthening the legitimacy of constitutional amending can be achieved. According to the previous experiences of constitutional amending in our country, the consensus on the amendment of the constitution usually formed by political parties and political elites in the mechanism outside the system. The function of the constitutional amendment procedure was mainly the implementation and confirmation of the consensus on the amendment of the constitution. The National Affairs Conference for the first constitutional amending and the National Development Conference for the fourth constitutional amending, both which were convened by the president to enlist the participation of social elites and citizen leaders are successful example of citizen participation. Its significance lies in accommodating civic opinions without being selected by political parties or electional politics. These civic opinions make the constitutional amending more generally and thoroughly considered. Taking the constitutional amendment process into account with citizens and elites participation can be the successful formula for constitutional amending in our country. At the past time, the constitutional amendment authority was the National Assembly, which had been replaced by the Legislative Yuan and referendum by the citizens. So the successful formula for current constitutional amending should has different formulation. The president owns the height of the sovereignty, and the two major parties, the Democratic Progressive Party and the Kuomintang, have the procedural veto power in constitutional amending. All of them have great influence of political decisions on the discussions and participation of citizens in the political process of constitutional amending. We are looking forward to their perception and realization. We also hope the Constitutional Amendment Commission of the Legislative Yuan will accept the theme of discussion the mechanism of citizen participation in public hearing.