Fuel tank for vehicle

A fuel tank for vehicle, comprising:

• a fuel suction port through which a fuel pump sucks fuel in the fuel tank from the lower portion of the inner space of the fuel tank;
• a first partition wall surrounding one of the front and the rear and the sides of the fuel suction port to have an opening to the other of the front and the rear and preventing the fuel from moving to one of the front and the rear;
• a second partition wall surrounding the sides and the other of the front and the rear of the first partition wall to have an opening to one of the front and the rear and preventing the fuel from moving to the other of the front and the rear;
• and
• a guiding member is provided on at least one of the sides of the second partition wall, and guides the fuel from the other of the front and the rear into the space to one of the front and the rear of the opening of the second partition wall, wherein the guiding member has an opening to the other of the front and the rear receiving the fuel from the other of the front and the rear, and a side opening discharging the fuel into the space to one of the front and the rear of the second partition wall, wherein the opening to the other of the front and the rear is larger than the side opening.