Aiming at the development plan of Songliao Canal，to connect Songhua River and Liaohe River systems and reflect the comprehensive advantages of water transportation，this paper adopts qualitative and quantitative combination，comparative analysis and other methods to obtain the location function of the canal，transport cargo，river condition，ice condition，water resources，flood，sediment，geomorphology，river bridge，water and so on.To reduce the canal length，save the cost，and consider the comprehensive utilization of earth and rock and the long-term water resources protection，the canal alignment and layout scheme of 24 steps and water head control from Songnen junction to Liaohe，Hunhe and Daliao River are proposed to realize comprehensive development benefits of the canal.It will play a role in shipping，diversion of water from the north to the south，flood control and drought relief，improvement of soil and water environment，and construction of a canal economic belt.