The Pinglu Canal is a cross water system connection project,and the water guarantee rate for navigation in the dry season basin is insufficient.The ship lock needs to adopt water-saving technology.Taking into account factors such as water delivery efficiency,water-saving rate,and ship lock capacity,a comprehensive technical and economic comparison is made for the selection of water saving methods and the layout of water-saving pools.It is recommended to adopt a water saving pool scheme with overlapping first and third level water saving pools and dispersed second level water saving pools,with a water saving rate of 60%.The main function of the Madao Hub is shipping,while also taking into account the emergency flood control of the Yujiang River.The dam site is located in a low mountain and hilly terrain,and a double-lane 34 m × 300 m ship lock will be built at once.The ship lock adopts a multi-level water-saving pool scheme.The layout plan is influenced by many factors.By combining the scale of the sluice gate,the layout of the water conveyance system,and the layout of the water-saving pool,the axial spacing between the ship lock and the sluice gate can be optimized to save land resources and engineering investment.Through model experiments,it has been verified that under the conditions of adopting a 4.5 minutes staggered operation of the double line ship lock and optimizing the layout of the upstream and downstream navigation guide walls,the navigation flow conditions in the navigation channel meet the regulatory requirements.