A marine vehicle comprises a hull, a supporting assembly and a sail assisting assembly. The hull comprises a cabin and two marine railways. Two installation parts are arranged on the two sides of the hull. The two marine railways are arranged on the installation parts respectively. The end portion of each marine railway is provided with a bulbous bow. The supporting assembly comprises two supporting pieces, and each supporting piece is correspondingly arranged at the bottom of one marine railway. The sail assisting assembly comprises an installation seat, an installation rod, a main sail body and an auxiliary sail body, and the installation seat is arranged on the cabin. The supporting assembly of the marine vehicle makes contact with the ground through the arranged supporting pieces, so that the hull is supported, the area, making contact with the ground, of the bottom of the hull can be reduced, the bottom of the hull can be better protected, and the bottom of the hull is not damaged. In addition, the sail assisting effect can be achieved, an operator can conduct adjustment better according to the wind direction, so that the use efficiency of wind energy is improved, and therefore the assisting effect is improved.