This article is to investigate the effect of the discourses of identity on the development or non-development of Islamic common foreign policy considering the efficient elements in the internal and external area of Islamic countries located in Middle East. Two fundamental elements in this framework would be the beliefs, values and pressures of extra-regional powers. It is believed that, the beliefs provide the required conceptual grounds for the development of identity whereas the identities originated out of values are not of converging function. It means that although the religious beliefs such as belief in God, Islam Prophet, Kiblah and common book could guide the Muslim countries of Middle East towards developing common foreign policy yet religious sects- the sects which are the discourses inside the Islamic discourse- prevent the development of Islamic common foreign policy. On the other hand, the west would effect positively and negatively on this process either while challenging all the Islamic community (like fighting against Islam) which would be of positive function in the development of Islamic common foreign policy or while making problem in providing cordial relationships among Muslim countries (like trial to manifest Iran and Shiites as Threat) which would be of negative function.