北韓以核武及導彈作為對抗美國的「護身符」，也是其突破外交困境及獲取 經濟援助的 「工具」，嚴重威脅國際不擴散建制與東北亞安全。中共曾協助北韓提前突破鈽提煉技術，另北韓自巴基斯坦迂迴獲取中共濃縮鈾技術，中共也曾提供北韓蠶式反艦導彈、飛毛腿B型防空導彈(SCUD-B)與技術援助，同意北韓參與東風61型(DF-61)導彈研發工作。中共在北韓核武及導彈發展中扮演了一定的角色。 北韓分別於1993年及2002年發動核武危機，美國與相關國家籲請中共出面協助化解危機，中共則利用其在北韓核危機中的獨特地位與影響力，巧妙地將相關國家對中共的期望，轉而謀取其政經利益。在第一次北韓核武危機中，中共發揮勸和與促談作用，有助於雙方最終達成「框架協議」，就其所發揮的作用而言，勉強可稱為斡旋者及調停者。第二次北韓核危機中，在中共協調與斡旋下，假北京舉辦三邊會談與六邊會談，將危機導入和平解決的軌道。中共扮演會談的東道主、會議主席的角色、斡旋者與調停者的角色，有助於提高其國際地位的影響力。 中共正趁勢將其影響擴展到其他領域，而且結合其經濟實力來營造一個有利於自己的外交環境，利用市場和經貿關係的巨大輻射力使國際社會日益向中國靠攏，一個新的國際外交與經濟核心正在北京形成。 / North Korea has used nuclear program and missiles as “amulet” against the United States and instrument for acquiring diplomatic and economic benefits. It obviously threats to non-proliferation regime and security in north-eastern Asian. China has played a certain role in North Korea’s nuclear and missile programs. North Korea achieved breakthrough of plutonium refinery with the assistance of China and acquired China’s uranium enrichment technique through Pakistan. China also provided North Korea with Silkworm anti-vessel missiles, Scud-B missiles and other technical aids. China agreed North Korea to participate in China’s development of DF-61 missiles. Two nuclear crises were provoked by North Korea in 1993 and 2002, respectively. The United States and other nations concerned urged China to help resolve the crises. China took advantage of its distinctive position and influences to gain political and economic interests. In the first North Korea nuclear crisis, China’s role can be viewed as “mediator” or “intervener” because of its influence on US and North Korea to achieve an “Agreed Framework” finally. With China’s coordination, the tri-party and sex-party talks help in Beijing led the second crisis to a peaceful resolution. China’s roles as host and chairman for the meetings, intervener and mediator have effectively demonstrated its international influence. China is exploiting any opportunities to extend its influence to other areas as well. By using its economic power, China is creating a favorable foreign environment and maintaining closer relations with other countries. A new diplomatic and economic power is forming in Beijing.

北韓自1950年代起逐步建立其核武實力，形成對國際社會的嚴重威脅，基於其政權生存與經濟的需要，動輒以核武要脅國際社會換取能源、糧食援助及安全保障。1994年第一次北韓核武危機結束後，由於美國與北韓後續未確實履行核框架協議，從2002年10月北韓承認恢復其核計畫、美國開始停止對北韓供應重油起，北韓動作頻頻，除自2003年1月10日起宣佈退出禁止核子武器擴散條約外，更積極發展核武抗衡美國與國際社會，對相關國家的安全造成莫大影響，並期望藉此獲得所需的政治利益與經濟援助。北韓的行為引起國際關注，視之為第二次北韓核武危機。中共、南韓、日本、俄羅斯及美國對此均投以高度關注，努力謀求解決之道，而中共更是此次核武危機演變與發展的關鍵斡旋角色。 第二次北韓核武危機發生以來，中共對核武問題的解決發生了建設性的作用，各輪會談能夠持續運作，中共以穿梭外交遊走於各國功不可沒，其角色重要而多樣，儼然成為斡旋者、調停者、領導者、防衛者、緩衝器、利益攸關者、平衡者、機制建議者，若依北韓核武危機往良性發展的端倪來看，未來中共更可能兼具經濟支援者、安全保障者和制度監督者的角色。此次的核武危機為中共大國外交提供難得的歷史機運，藉由複雜的危機解決過程，緩和了危機的緊張態勢，更藉由與各國間的互動與合作，獲得實質外交進展，提高了中共的國際影響力，同時這樣的作為也是符合各方利益的最佳選擇。 本文主要包含兩大方向：首先探討第二次北韓核武危機的背景與判斷北韓發展核武的動機，繼之簡述兩次核武危機始末；接著統整自三邊會談、六方會談召開以來之情勢發展及與會各國互動形成的共識共決，分析中共居中的角色與其國家利益之間的關聯性，並研判該議題未來走向。 / Since 1950s North Korea has gradually built up its nuclear weapon capabilities, forming a serious threat to international community. Based on the need of regime survival and economy, North Korea frequently uses nuclear weapons in threatening international community for exchanges of energy, food aid and security assurances. After the end of the First North Korea Nuclear Crisis in 1994, US and North Korea did not actually carry out the Agreed Framework, North Korea confessed to restart its nuclear program in October 2002 while US suspended supplying heavy fuel oil to North Korea. In addition to its withdrawal from the Nuclear Nonproliferation Treaty, North Korea also actively develops nuclear weapons to contend with the US and international community, bringing about huge impacts on the security of relative countries, hoping to exchange for more political benefit and economic assistance. The behavior of North Korea has raised international attention, regarding it as the Second North Korea Nuclear Crisis. China, South Korea, Japan, Russia and the US all pay high attention and work hard to seek for solutions to the crisis. China has played a key role in the evolution and development of the Second North Korea Nuclear Crisis. Since the inception of the 2nd North Korea Nuclear Crisis, China has turned out to be constructively pivotal in solving nuclear weapon problems. The fact that six rounds of talks can take place continuously go to China’s credit, which pursues shuttle diplomacy to coordinate the activities of the other six-party talks participators, playing roles that are important yet various, apparently becoming a mediator, good officer, host, defender, buffer, stakeholder, balancer, mechanism keeper, and, in viewing from the point that North Korea Nuclear Crisis has been developed toward a more positive direction, China will more than likely take key role as economic supporter, security guarantor and mechanism supervisor. This nuclear crisis provides China a rare historical opportunity of big-power diplomacy. Through complex crisis solving process to détente intense situation and the interaction and cooperation among Northeast Asian nations to obtain actual diplomatic progress, the influence of China has soared while such action is the best choice in complying with relative nation’s interests. The study mainly include two directions: At first the background of the Second North Korea Nuclear Crisis be reviewed and the motive of North Korea in developing nuclear weapon be determined. Then how the two nuclear crises began and ended are briefly stated, followed by integration of situation development since the Three-party talks, Six-party talks and the common agreement formed among participating nations. The role of China and relations to its interest is analyzed and thus the future direction of the issues is also carefully studied.