This paper introduces control system with multi units A.C motor of synchronous-driving,It has introduced the method of the system design.Mainly,the paper analyses and designs the three units of the synchronous control system,takes the coil unit as the example to explain,and builds up the relative mathematical model.Basing on the mathematical model,the configuration of control system has been founded.In aspect of the control algorithm,Advanced Control Strategy which includes parameter adaptive,signal adaptive,expert control has been applied in the system.The control system is made up with OMRON CJ1M PLC.Experiment result indicates that the multi units synchronous control system has better robust and gets the effect.