分析各种微处理器实现铣床数控系统存在的问题，确定了控制方案，给出了双ＣＰＵ通讯实现方法。采用缓冲区技术设计程序，提高加工光洁度。对程序、设计中的若干难点给出了处理方法。 Analyzes the problems existing in various numerical control system of milling machine by various microprocessors, determines the control scheme and gives the realization method of dual CPU communication. Using buffer technology to design programs to improve finish. On the program, the design of a number of difficulties given treatment.