Wire drawing machine production process, the basic function of the computer control system to control the production process, should first determine the process and equipment. Under the condition of the identified process and equipment, to realize the computer control,. To determine the basic function of computer control system. Direct digital control (DDC), the computer can replace analog regulator of direct digital control box program instead of the circuit operation, and can be controlled by modifying the software to multiple loop, therefore, using computer to control is much more economic and convenient. Setting function and mathematical model of the DDC control only between set value and feedback value error adjustment, cannot determine whether high fixed value itself is reasonable, the set value of wire drawing machine production process must be carried out in accordance with the production process of the process of optimization, it must establish a mathematical model of the production process, to ensure the implementation of the production process optimization and control. Rolling piece tracking function. In order to guarantee the computer control of the rolled piece, must let life