Since 2008 to the middle term of 2009，the U.S.Middle East policy has experienced significant changes. During this period of time，Bush retired from office and left behind a big mess，such as the conflict and instability in Afghanistan and Iraq，the split into two governments in Palestine，the Iranian nuclear crisis，the democratic transformation of the Middle East counties，etc.Since Obama took office，he has promoted new Middle East policy with strong self-confidence.He announced that the United States would withdraw its troops from Iraq，and transfer totally the security responsibility to Iraqis. Moreover，the U.S.would move its anti-terrorism focus eastward from Iraq to Afghanistan. On the issue of Palestinian-Israeli peace talks，the United States would insist on its principle of two-state solution. Meanwhile，Obama has taken the initiative to seek a direct dialogue with Iran，and hence might change the U.S.policy of attacking against Iran resulting from Iranian nuclear issue.