The invention provides a ground-effect vehicle capable of shallowly diving, which can dive shallowly to hide water-
jet propulsion and rise over the sea surface to increase
jet propulsion, changes hydrofoils into airfoils, generates ground effect, flies over sea or very closely to the ground, and lands in a jet traveling manner. A multistage double circular-arc gear
high pressure large capacity pump or multistage internal serial connection dual-charging double circular-arc
gear pump is taken as the hydraulic
propeller pump during the shallow diving process and the jet
propeller pump during the process of flying over the sea. A water pump is used for water inlet submergence and water drainage to a
ballast water tank besides
water jet; when
jet flow is performed at the
tail part, and one side is shut off, namely, steering is realized; when flying over the sea, the ground-effect vehicle is still closely stuck to the sea surface for water-
jet propulsion. The jet
propeller pump can be used for jet propulsion at the
tail part and jet hovering at the bottom part through a valve, and the jet at the
tail part is turned, so that the purpose of changing the heading can be achieved. The ground-effect vehicle has four navigation conditions: main water-jet shallow diving; main water-jet and jet flying over the sea; minor jet flying near the ground; and minor jet traveling wheel landing, and the ground-effect vehicle is manufactured by manly adopting a novel light material, for example, the
fiber reinforced
composite material (FRP).