The existing navigation facilities generally refer to the ship lock and ship lift.The ship lock has high traffic efficiency，but it consumes more water.The ship lift does not consume water，but it has low traffic efficiency and complex structure.Therefore，in view of some limitations of the existing navigation facilities，this paper proposes a new type of hydraulic lift，which can save water and energy to the maximum extent and has good traffic efficiency when applied to navigation facilities.This navigation facility uses the lift in the shaft (mother ship) to carry the navigation ship (sub ship) to achieve lifting.The sub ship is in the pool on the deck of the mother ship.When the water level in the pool is flush with the upstream and downstream water levels，the vessels in the pool will then enter and exchange with upstream and downstream vessels，so as to achieve the purpose of navigation of upstream and downstream vessels.The navigation facility can have the functions of ship lock and ship lift，and has good universality and applicability.