To enable additional fueling by providing a fuel tank device for vehicle so as to exhaust vapor from a small hole of a filler pipe member and arranging a fuel shut-off valve member preventing flowing-out of the fuel inside a fuel tank onto the other end side of the filler pipe member on the other end side of the filler pipe member more than the small hole.

This fuel tank device for vehicle is constituted by a fuel tank 1 storing fuel, a filler pipe member 2 whose one end faces the inside of the fuel tank 1 and other end is provided so as to insert a fuel supply gun 4, a vapor pipe member 3 whose one end faces the inside of the fuel tank 1 and other end is connected with a canister, and a valve member 5 provided in an end part facing the inside of the fuel tank 1 of the vapor pipe member 3. The valve member 5 is closed when the fuel in the fuel tank 1 reaches a predetermined liquid level position 8. The filler pipe member 2 has a small hole 10 for exhausting vapor at a higher position 9 than a liquid level at which the valve member 5 is closed and has a fuel shut-off valve 11 for preventing spray back of the fuel on its upstream side.