To provide a vehicle sensing device for a flap parking garage capable of securing a stable vehicle sensing performance by solving problems wherein, depending on the shape of the bottom part of a vehicle to be parked, a magnetic line of force transmitted from the transmission coil of a vehicle sensor does not properly reach the receiving coil, and the sensor cannot sense the vehicle.

A vehicle sensing part 20 is disposed continuously with an end bearing structural part 13 serving as a pivot for the turning operation of the raising and lowering of the flap plate 11 of the flap parking garage 10. The transmission coil 22 and the receiving coil 23 are installed on the base board 21 of the vehicle sensing part 20 at an interval in the longitudinal direction. The base board 21 is formed in such a manner that the end bearing structural part 13 of the flap board 11 is positioned on the rear surface side of the base board 21 in the lateral direction, and tilted in the direction in which one end of the long side of the base board 21 is brought into contact with or in proximity to a flap device mounting surface.