Regarding the complex flow conditions in mountainous rivers，narrow land depth and limited port layout，feasible solutions are put forward and corresponding engineering measures are taken to realize the combined transport function of “railway，highway and water” in the port area. In view of the key problems of water area layout，the plane layout is optimized through physical model test to improve navigation conditions. The verification during the operation period shows that the water flow in the front of the wharf berth is gentle，the flow regime is stable，the reliability of ship loading and unloading operation is high，and the technical route and research method are reasonable and feasible.