After impoundment of the three Gorges reservoir, obvious changes took place on river bed evolution of the reach in the reservoir area. Based on an analysis of measured data and scour-and-fill variation for many years, we get to know that sediment deposition geometry relates to the river pattern: deposition at the bend or branch reach is serious while that at the straight reach is lower. The analysis presented on river bed evolution of typical river patterns in the upper Yangtze River from Wanzhou to Changjiang reach provides reference for further studies.