In this research the political, economical and social consequences of the presence of the Allies in the northern ports of the Persian Gulf in the years of occupation of Iran in World War 2, including ports of Khuzestan and Bushehr have been investigated. Implementation of Allies plans for sending of procurement to the Soviet front through Iran, defending Persian Gulf oil resources and the western frontiers of India, required the domination of the banks and Persian Gulf ports. After the occupation of Iran in August 1941, the Persian Gulf became arena of presence and extensive activity of allied forces. These activities and imposing presence had a profound effect on various aspects people's lives. The issue of present research is the exploring and explaining of the political, economical and social consequences of the presence of the Allies in the northern ports of the Persian Gulf in the period of World War 2. In this research, this question will be answered by analytical-explanatory method: how were the presence of Allies in the ports of the Persian Gulf and this presence had what consequences. The research hypothesis is that the Allies created new mechanism to achieve their goals from the presence in the ports of the Persian Gulf and their presence causes the widespread impact in these ports. The presence of Allies in the ports and the occupation of the country led to get out of control of affairs from the authorities of governmental official and revival of the power of the tribal chiefs and local rulers. Economic demands, weakening the central government and political competitions between the Allies at the end of war provoked insurrections and instability. In this period, insecurity, famine, economic and social disorders were the most serious problem of people in coastal area that lead to the demographic displacement and many migrations from this region.