Abstract: A collision accident simulator is composed of a vehicle for driving on a predetermined drive road and a collision object for moving in an intersectional direction for a driving direction of the vehicle and colliding with the vehicle. A collision accident simulation method for simulating a simulation collision accident is comprised of steps of riding an experience person for experiencing the simulation collision accident on any of the vehicle and the collision object and making the collision object collide with the vehicle, wherein the vehicle drives on the predetermined drive road.