After ¡§911 Attack¡¨ in 2001, every place in the world suffered destructive attack by terrorists one after another. It caused not only heavy casualties but also a shock to the international society. Religious fanaticism and technology misuse has made terror actions be serious threat to world stability and peace. United Nations Security Council not only critically condemned terror brutalities but also appealed to every member for urgent cooperation to prevent terrorist attack together and punish those who sponsor, plan, prepare for, and support terrorists; legislation sanction against terror actions has become the common consensus of the international society. Viewing the current achievements of countering terrorism, applying military strikes invariably still cannot completely solve this problem effectively. It must trace its source through knowing what problems happened in the society and how to make the most proper adjustment to cruxes of problems by means of double examination, ¡§Efficiency¡¨ and ¡§Rationality,¡¨ plus negotiation of every aspect of politics to enact the law, which conforms to principles of economy. There were a few actions of international terrorists in our country in the past, but we must have the attitude of playing the percentages and draft policies and complete laws in advance to response. At present, our country plans to finish the draft of ¡§Counter-terrorism Act,¡¨ providing the legal foundation of punishing terror actions and plan to set up a chartered counter-terrorism institute by the government to respond to significant terrorist attack. The research of our legal system of counter-terrorism is to discuss how to reach the balance between maintaining national security and protecting human rights by following the basic theory of administrative laws¡Ðprinciple, organization, authority, remedy, and supervision as the foundation of the thesis, and citing professor DENG, Syue-liang¡¦s academic quotation theory. In the light of every research structure, the research made correct description of crucial meaning of the system and explored the merits and demerits in the course of applying the legal system with objective explanation of its administrative measures and personal cognition, and brought up suggestions for follow-up researchers as reference.