Automatic steel door panel production line utilizes a robotic arm for automatic feeding of materials. By employing the NCM-580 door panel roll forming machine, it achieves one-step forming of the side frames of the door panel. Hydraulic flanging is utilized to shape the top and bottom ends. The door leaf production line can be customized according to process requirements. When selecting the multi-head punching machine for hole punching, extruded hole forming can be performed simultaneously. When choosing laser cutting for perforation, the production line does not require molds and hole positions can be customized as needed.