以高强度阴螺纹钢筋为例介绍了钢筋热处理生产线的自动控制功能。给出了实现这些功能的硬件、软件框图。阐述了以Ｃ系列可编程序控制器为主的ＰＣ机实现这些控制功能的方法以及相应控制软件的执行过程。此套控制系统操作简便、可靠、满足热处理工艺要求，对提高产品质量和产量发挥了重要作用。 Taking the high-strength female thread rebar as an example, the automatic control function of rebar heat treatment production line is introduced. Given the realization of these functions of hardware and software block diagram. The method to realize these control functions and the execution process of the corresponding control software are described in the PC of C series programmable logic controller. This set of control system is simple, reliable, to meet the heat treatment process requirements, to improve product quality and output has played an important role.