安全是每個國家最關切的議題。最近幾年伊朗以能源安全為由加速進行 核能發展，對於其他國家而言，伊朗的作為已危及他國安全。因為多數的證 據顯示，伊朗的核計晝發展不是用於民生用途，而是要發展核武，這已違反 國條約的相關規定。做為聯合國五個常任理事國對於伊朗的核計劃發展表達 不同程度的關切，而不同程度的關切充分的顯露出各大國不同利益的考量， 也導致對於該議題的意見紛歧。但最近大國們已逐漸達成共識，不但把伊朗 核問題提交安理會報告，且聯合國安理會通過1696決議案要求伊朗中止核 計劃，否則將會受到外交與經濟的制裁。安理會在伊朗核問題上已踏出第一 步，若能妥善的處理伊朗核問題將得以指導解決未來可能發生的無核國家核 擴散的問題，也助於強化國際禁止核武擴散機制的功能。

Security is primary issue of nations’ concerning. For the past few years Iran has accelerated the nuclear programme for protecting its energy security, but Iran5s actions have damaged other nations5 security. There is some evidence to suggest that the goal of Iran5s nuclear programme is not civil but acquiring nuclear weapons, to violate an international agreement. As five permanent members of UN Security Council express different attitude to Iran5s nuclear programme, and different attitude reveals that great powers have concerned different national interests, causing divergent opinions on this matter. Recently great powers are drifting towards a common consensus. Not only great powers agreed to refer Iran's nuclear issue to the Security Council on February 2006, but Security Council adopted resolution 1696 on July 2006. According to resolution 1696, Security Council demanded Iran suspend all enrichment-related and reprocessing activities, including research and development, or face the possibility of economic and diplomatic sanctions. Security Council have walked out the first step for Iran5s nuclear issue, and if Security Council could deal with Iran’s nuclear issue by proper means，Iran’s model will become an example of solving the proliferation of nuclear weapons in tlie future.