當兩岸在2002年皆正式成為WTO會員的時刻起，除彼此經貿關係將在國際體系下進一步整合，兩岸會在WTO下產生哪些政治性互動或WTO能否改善兩岸長期的政治對峙一直是備受各界關注的問題。本文的目的即在探討WTO下兩岸已進行之政治互動，了解其動機、內容，甚至爭議，同時發覺其意涵。截至目前，兩岸在WTO下已因主權的競爭與爭議在入會名義及順序、會員地位、權利，及名稱等事務上進行主要的政治性互動。而這些政治性互動或政治化的紛爭也突顯出，WTO不強調國家主權，不規範、處理政治及主權相關事務的做法，反而提供兩岸在WTO政治活動的空間，使兩岸難解的政治糾葛與主權爭議出現在WTO，影響兩岸在WTO下的互動，衍生不必要的競爭，與增加額外的成本。是以，至今WTO仍未能夠替兩岸開啟良性的政治活動，而目前的WTO規範對兩岸政治性互動的影響則仍有其侷限性。在此情形下，究竟「國際組織」與「雙邊關係」的連動關係為何也頗值得吾人做進一步的理論探究。

Since both sides of the Taiwan Strait became the official members of the WTO in 2002, what cross-Strait political interactions under the WTO would be and whether the WTO would improve the long-term political confrontation across the Taiwan Strait have been the well concerned issues. This paper is mainly to explore those already occurred political interactions between Taiwan and China under the WTO, by capturing their motivations, contents, and disputes, as well as discovering their implications. Because of the sovereignty competition and dispute, thus far China and Taiwan have had political interactions on such matters as accession names, accession order, member's status, rights, and name. More importantly, these occurred cross-Strait political interactions under the WTO manifest that neither stressing sovereignty nor involving/handling political matters of the WTO indeed has provided both sides of the Taiwan Strait room for political maneuvering. Which has thus allowed unsolved political and sovereignty disputes between China and Taiwan to occur in the WTO, affecting cross-Strait interactions under the WTO by generating unneeded competitions and increasing extra cost. The paper, as a result, concludes that until today the WTO still has not been able to initiate positive/constructive political interactions across the Taiwan Strait, and the current WTO rules still have little impact on cross-Strait political interactions. In this context, what is the dynamic relationship between “international organizations” and “bilateral relationship” might be worth further studying.