介绍了水平连铸机拉坯辊速度控制系统，着重阐述系统给定信号的计算机实现方法，讨论了软件设计，给出了程序流程。关键词:水平连铸 ；速度控制 ； 计算机 ；给定信号Signal Setting by Computer in Steelblank Drawing Roller Speed Control System of Horizontal Continuous Casting Machine TangWei LiTie TanYanLiang (Institute of Electrical Engineering of NanHua University,Hengyang,Hunan,421001) Abstract:This paper introduced steelblank drawing roller speed control system of horizontal continuous casting machine.It also described in details the computer realization of the system set signal.The system`s software design and its procedure were given.Keywords:horizontal continuous casting machine;speed control;computer; set signal