The work is aimed to research and build an automatic production line based on HEIDENHAIN iTNC530 computer numerical control (CNC) system. The construction and workflow of the mechanical system were shown, and the framework and communication strategy of the control and management system were determined. It was further described in detail the method for connecting the main control unit of the production line to the iTNC530 system. The DNC control and connection of the automated machine tool production line are realized.