Abstract: The use of traffic lights for a fixed length of time for road traffic control has the disadvantage of low traffic efficiency.In order to optimize the traffic of intersections,this paper proposes a design scheme of real-time control road intelligent traffic light system for pavement intelligent traffic based on FPGA.The system applies the polling model,the vehicle arrival rate is detected by the vehicle detector,according to the traffic rules and the polling theory,the green light time length of the traffic light is obtained.Different vehicle arrival rates are detected at different time,which makes the corresponding traffic light duration different,so this can intelligently adjust and control road traffic,and makes the main road and the trunk road coordinately,which can improve the traffic efficiency of the intersection.On the QUARTUS II software platform,the system design and simulation verification is completed.The simulation results show that the system can realize the intelligent adjustment of traffic lights.