The research tagged (the effect of water on the formation of river bends in the Tigris River stream in Baghdad Governorate) aims to identify the natural position of the Tigris River in Baghdad and the reasons that led to the formation of the river bends in this stream through the study and analysis of the natural and human characteristics of the area. The research reached several conclusions, the most important of which are: the variation in climatic conditions, especially wind, heat and humidity, which in turn led to the variation in the amount of rain and its absence in the months (July - August - September) and in the environment suitable for chemical and physical weathering processes in the rocks and components of the two banks of the river, meaning that it is in addition to the role of Tigris River waters shape river bends in terms of their susceptibility to erosion.