Ship high in water guide capacity

The invention relates to the technical field of mechanical manufacturing of ships, in particular to a ship high in water guide capacity. The ship is provided with a ship body, a deck is arranged on the upper portion of the ship body, and a bulwark is arranged at the edge of the deck. The ship is characterized in that a flange bending towards the outside is arranged at the upper end of the ship body, the upper portion of the flange is connected with the portion, extending out of the ship body, of the deck, the bulwark is arranged at the edge of the deck, a water guide hole is formed the portion, extending out of the ship body, of the flange, and a one-way water guide valve is arranged in the water guide hole; the one-way water guide valve is composed of a connection pipe, a water guide pipe, a closure plate and a torsion spring, the outer wall of the connection pipe is connected in the water guide hole, the water guide pipe is arranged at the lower end of the connection pipe, and the diameter of the water guid