In the Middle East, Iran’s great power status is emerging recently, the European Union’s foreign and security policy senior representative Mo Guerrini led delegation to visit Tehran, and said the relationship between the EU and Iran opened a new page. Since the Iranian nuclear agreement, paid a visit to Tehran’s delegation visited, Iran’s foreign policy is also entered the very busy season. As is known to all, since 2012, the United States and its allies in Iran to carry out severe economic sanctions, Tehran’s economy and diplomacy into a difficult position; however, Rouhani took the stage after the settlement of diplomacy. Now it seems that after the Iranian nuclear agreement, Iran’s friends are also more up. However, cold, Iran to get out of isolation still need time, Iran also need to adapt to their new roles. From the political aspects, the Iranian nuclear agreement came into effect three months the, but sanctions on Iran hasn’t really lift, especially in the field of financial sanctions, which makes Iran’s economic development is still subject to a lot of constraints. But can not be ignored is that the United States is the world’s financial hegemony, the most ruthless sanctions against Iran, Iran will be excluded from the United States led the global financial system, can not use the u.s.. These sanctions to allow Iran’s oil exports greatly reduced, more unfortunately, Iran can legally export oil, the global oil prices plummeted, it can be said that even worse. For now, the Iranian nuclear agreement has not brought real benefits, which makes Rouhani, Zarif isothermal and pie is also under pressure. The Iranian nuclear agreement reached is actually compromise US Iranian moderates the results, if not as soon as possible to fulfill the commitment of both parties, there must be provoke a backlash in the hardliners. In addition, the United States is also a human rights, terrorism and other reasons not to relax the economic sanctions against Iran, Hilary also said that any breach of agreement in Iran will be subject to new sanctions. Although the basis of trust between the US and Iran is very weak, even not to mention what trust, but can not be denied, the Iranian nuclear agreement for Iran to re entering the world opened the door. In the past few months, major world powers delegations or leaders visited Tehran, signed a series of cooperation agreements and framework, which resulted in at least a diplomatic weather, Iran has become a member of the very popular. All want to find a big cake in Iran, a position that. Although the United States has not promised not to punish enterprises of the economic cooperation with Iran, however, trend has been formed, unless the United States to find new sanctions on the grounds Iran into open economy is an irresistible trend. In Iran, hands the biggest chip fear is not only oil, Iran’s most attractive should is its pillar role in the Middle East, to resolve problems in Syria and Iraq is not open around Tehran; moreover, from Tehran Baghdad to Damascus Shia crescent zone, but also changed the geopolitical situation in the Middle East. At the same time, on the issue of terrorism, Iran is the world’s allies – Russia will not say, the United States is also so, although there is no formal cooperation, but all in the fight against the same enemy. Is more important, Iran in the middle of the chess game occupied one of the top three position, Saudi Arabia, Iran and Turkey in the new order in the Middle East is a key role. Iran.