The U.S.-led international forces defeated and overthrew the Saddam regime in Iraq and the Taliban regime in Afghanistan，and the “Arab Spring” led to the decline of regional influence of many Arab countries，which significantly enhanced the strategic position of the Islamic Republic of Iran in the Middle East. However，compared with Turkey，Israel and Saudi Arabia，the current security environment faced by Iran is not ideal，and Iran is facing severe challenges in maintaining and further enhancing its regional strategic position. The “Rise of Iran” should also be observed with the meaning of “Iran threat” that the countries concerned want to instill in it. The maintenance and promotion of Iran’s existing regional strategic position require it to make major reforms in domestic and foreign affairs. Relations between Iran and China have room for improvement.