Yangtze River runs across Wuhan city's central area along the direction of SSW-NNE. The riverside plains of Wuhan have always been considered as the city's prime locations. These plains are distributed along the riverbanks between the Pleistocene low hilly region and Yangtze River. In this study, we have discovered that the formation of riverside plains in this area are product of incorporated by sand bars into former riverbanks, experiencing four mainly multi-transportation stages:river-central bar-lake-land. We analyzed the formation factors of the northern Wuchang Plain as a classic case. By consulting the geographic maps, we found that Sheshan-Qingshan reach of Yangtze River was much wider with asymmetric banks in Ming Dynasty (1368 AD to 1644 AD), the left bank line had straighter curvature, slightly bulging into the river under affect by Hanjiang River Delta. The right bank line, however, had a parabolic shape and outline stretching along the modern southern bank of Lake Shahu, via Shahu harbor to Qingshan harbor. Multiple channel branches and sand bars developed on the Yangtze River. Until mid-Qing Dynasty, the sand bars constantly shifted towards the right bank and fused together to divide the river channel into two branches, the main drainage branch was to the west, the right branch was clogged and separated by fusing sand bars into bead-like lakes, including Lake Yujiahu, Lake Shahu and Lake Baijiahu. In the 1899 AD, causing by natural and human activities, the entrance of right branch had been blocked, the sand bars incorporated with the right bank and formed the modern riverside plain. The Lake Yujiahu disappeared, the Lake Baiyang shrunk into modern Qingshan harbor, the Lake Shahu became interior lake during the same period. Hence, the evolution of river channel and riverside plains can result into the following model:Multiple River channel branches with multiple sand bars-Dual River channel branches with single sand bar and lakes-Single straight wide river channel with sandy banks. Our study can provide rewarding insights for studying formation process of similar stretches of Yangtze River's riverside plains along the middle and lower reaches of Yangtze River.