Abstract:The design way of the parallel stepping controller was put forward based on shift principle. The controller core was CMOSCC4015 integrated circuit (IC) circular shifter. With controller input / output circuit and a shifter circuit terminal control, the parallel structure sequence control requirements were achieved. The practical application shows that the controller has the advantages of stable performance, low failure rate, low energy consumption, small size, low cost and so on; controller peripheral circuit is simple, easy to use, easy to master. In the control of the single machine automation equipment, it has better promotion value.