Abstract: To address the limitations of traditional bevel machining equipment, such as limited adaptability to plate specifications, single bevel type, repeated flipping and clamping operations, and insufficient intelligence level, a design-control collaborative approach for a multi-specification variable bevel forming production line was proposed and the production line was successfully developed. Guided by the principles of integration, flexibility, and intelligence, a performance-driven design methodology was employed to develop a flexible beveling machine capable of accommodating various plate dimensions. A distributed control architecture integrating an upper-level computer, PLC, and servo systems was established, and a multi-axis motion decoupling model was formulated to enable precise coordination among multiple processing units and motion axes. Engineering validation demonstrates that the production line can accurately and efficiently machine 12 surfaces of the upper bevel, lower bevel, and root face on the four sides of the plate, including various bevel types such as V-shaped, Y-shaped, K-shaped, U-shaped, (U+V)-shaped, and (U+U)-shaped. The straightness of the bevel machined by this production line is 0.25mm/m, the parallelism is 0.25 mm/m, the bevel angle can be infinitely adjusted from 0 to 45°, and the angle deviation is 0.1°. The research results provide reliable equipment support for the high-quality manufacturing of high-end welded structural components.