The utility model relates to a digital control system for a special-shaped turning-milling combined machine tool. The system adopts a host computer and a slave computer, the host computer is a common PC (personal computer), a display of the common PC is used as the display of the digital control system, and a standard keyboard of the common PC is used as the MPC (Multimedia personal computer) faceplate of the digital control system; the slave computer is an IPC (industrial personal computer) used for operating a DOS(Disk Operating System)operating system; the slave computer exchanges information with the host computer through Ethernet connection. The slave computer only requires the industrial personal computer and does not require a display screen, the MCP panel, an input keyboard and other peripherals, so that the cost is further reduced, the system flexibility is improved, thereby achieving the economical turning-milling combined control system with extremely low hardware cost.