During World War II, the port of Bushehr was occupied During World War II, the port of Bushehr was occupied by the allies, like the rest of the Persian Gulf and the Oman Sea. Throughout the war (1320-1324), Bushehr was the scene of a strong presence of English, Indian, and especially American agents. The Allies aimed to send Soviet aid to all the military, economic infrastructure of the port. The purpose of this study was to investigate the effects of World War II on the port of Bushehr in a chronological process relying on largely unpublished archival records and public, economic publications. And the locality of the time is. The data set shows that despite the importance of Bushehr, the economic role of economists compared to previous periods, especially late Qajar and early Pahlavi move regressed show. As the end of the war draws nearer, its negative consequences are more pronounced on Bushehr. The adverse effects of several years after the end of World War II also affected the entire economic and social structure of Bushehr. Accordingly, Bushehr suffered a lot of social and economic damage in the challenge with the presence of a large number of foreign elements, and the process of degrading its position was accelerated. In this article, the researcher has tried to answer the following question: How did the consequences of World War II in a time process affect the deterioration of the economic situation of Bushehr port? In the end, it is concluded that the Second World War directly affected all aspects of domestic and foreign trade in Bushehr port and the resulting financial and social unrest, causing imbalances in various economic layers and severely weakening its position in Iran and the shores of the Persian Gulf.