To provide sand for reclaiming foundation of Yangtze Petrochemical Co., Ltd., the paper presents the way to mine sand in the planed channel managing and dredging areas in Baguazhou left braided river of the lower reaches of the Yangtze River. Adopting necessary waterway and navigation safety measures without affecting ships’navigation, we implement sand mining, river dredging and channel maintenance simultaneously, and achieved the result of saving the cost for businesses, stabilizing the pattern of Baguazhou branch channel, improving the channel conditions, and realizing a win-win situation.