The automatic CNC rebar cage roll welding machine is a kind of equipment that uses PLC intelligent control to process rebar cages. The CNC rebar cage roll welding machine can automatically form a rebar cage with a length of 2m-27m, and is equipped with an intelligent welding manipulator with independent intellectual property rights. It has higher production efficiency than lashing cages, saves materials, and has a sturdy cage, and a standard appearance. It is widely used in cast-in-place pile construction in bridges, high-speed railway construction and other fields. Rebar cage rolling welding machine is mainly composed of drag guide rail, console, drag drive system, main bar rack, rebar cage hydraulic support device, fixed rotary drive mechanism, mobile rotary drive mechanism, main bar fixer, main bar catheter, main bar bearing separation system, stirrup release frame, stirrup straightening mechanism, main bar feeding system.