PURPOSE: To correctly measure the force applied to the ground plane of wheels in various states.

CONSTITUTION: This travel characteristic measuring device 40 for vehicle is provided with a travel road surface 44 mounting wheels fitted to a vehicle and rotating the mounted wheels around axles, a rotating mechanism 32 rotating the travel road surface around the vertical axis, and a mechanism including screw rods 12A-D rotated in parallel in the vertical axis direction. The measuring device 40 detects the force applied to the wheels, an encoder 38 detects the rotation quantity around the vertical axis of the travel road surface, and a displacement gauge 24 detects the displacement quantity in the vertical axis direction.