摘要：The conflicting security and economic interest between the Kingdom of Saudi Arabia and the Islamic Republic of Iran brought the region of the Middle East towards unrest and antagonism. The region has immense strategic importance in global politics and always remains at the top of major powers' foreign policy. The competition of both states is not new but the Arab Spring proved oil on the flam in their competition. The study aimed to identify the particular issues, policies, and their contribution to the security and economic interest of both Riyadh and Tehran in the region of the Middle East. Secondary sources of data are used to analyze the security and economic interest. The results also indicate the major causes of security and economic interest as Iran’s nuclear ambition and its desire to gain dominancy in the international oil market while Riyadh wants to prolong its monarchy with the cooperation of GCC, balance power with Iran and wants to enhance its hegemony in the Middle East in economic and security means.
