Abstract: This paper introduces the design of sidewalk guardrail Control System based onMCGS Configuration Software and Omron Corporation CQM1H Programmable Logic Controller Series, gives the control system’s hard2 ware and software design, introduces the Control System of the configuration p rocess, and p roduces the control sys2 tem of dynamic monitoring screen. Based on theMCGS and PLC serial communication, the system realizes the con2 trol of the crossroads of traffic lights and sidewalk guardrail by using computer2controlled PLC.