Design method of automobile A column structure and automobile A column structure

The invention discloses a design method of an automobile A column structure and the automobile A column structure, and relates to the technical field of automobile manufacturing. The method comprises the steps that the eye spot position is determined according to man-machine arrangement, and an A column obstacle angle is determined according to the eye spot position; the section of a door frame outer plate of the A-column structure is kept within the A-column obstacle angle, a first reinforcing plate is arranged on the inner side of the door frame outer plate, and the two ends of the outer side of the first reinforcing plate are connected with the door frame outer plate to form a first cavity; an A-column inner plate is arranged on the inner side of the first reinforcing plate, the section of the A-column inner plate is kept within the A-column obstacle angle, a second cavity is formed by the outer side of the A-column inner plate and the inner side of the first reinforcing plate, and the sectional area of th