文章主要介绍了利用单片机和变频器之间的通信实现多台电机在自动化生产流水线中的同步控制。描述了控制的硬件配置和软件编程。采用A T89S51 单片机为控制器、国产佳灵J P6C 型变频器为执行器来控制电机,在实际应用中能够很好地满足生产的需要。-This paper mainly introduces the realization of synchronous control of multi motor in automatic production line by using the communication between SCM and inverter. The hardware configuration and software programming are described. The T89S51 J microcontroller is used as the controller and the domestic good spirit P6C A converter is used to control the motor, which can well meet the needs of production in the practical application.