In view that the backflow rate exceeds the standard in the entrance area of the guide channel,we analyze the mechanisms of weakening the backflow in the entrance area of the guide channel by a variety of flow-guiding structures,and put forward the pile-rectifying technology,which is extended,covering a variety of flow-guiding structural types.Combined with the physical model test,we apply the pile-rectifying technology to the improvement of the flow condition in the entrance area of Datengxia hub’s downstream channel.The results show that the pile-rectification technology can effectively reduce the flow rate with LD of 1.0.