The XKNC-100GS dual-spindle CNC machine tool adds 8 station turret, sub-spindle, sub-spindle holder and sub-spindle cutting tool holder to XKNC-100G. It can realize automatic exchange and second-order machining of the process. The feeder can be fully automated. It not only maintains the rigidity of our company is row of lathes, but also has the characteristics of high cutting precision, and solves the problem of second-order machining under one clamping.