This invention relates to one carbon diode laser and metallic arc welding compound thermal source cameral system, which comprises semiconductor laser, floodlight tube, 3D optical adjust rack, multiple ultraviolet antireflection film, round bias vibration combination, intervene filter slices, cameral lens, transfer head and cameral machine, wherein, the former three parts form light source structure; later three parts form image forming structure; the cameral and transfer head form cameral structure; the light structure is at one side of cameral subject and the image forming structure and structure are connected through transfer head at other side of the subject.