The invention provides a checking system and method for car A columns. A user controls a car body image (including an A column structure) of a virtual stereo traveling image through a check system traveling simulation device to travel on a street image of the stereo traveling image and emergency situations are added to the stereo traveling image, and whether the A column structure blocks user sight and causes traveling accidents accordingly can be checked through the fact that whether the user controls the car body image to pass through the emergency situations smoothly, so that the A column structure is corrected before car production, and the car development cost is saved effectively.