The invention provides a comprehensive video monitoring system of intelligent traffic, belonging to the field of intelligent traffic and electronic police. The monitoring system comprises at least one high-definition digital web camera, a video-monitoring industrial control host, a loop vehicle detector and / or a radar device and a high-definition intelligent traffic behavior monitoring unit. The intelligent system is capable of integrating various intelligent traffic monitoring behaviors as a whole, that is, fulfilling the functions of multilane illegal activity monitoring, license number recognition and traffic data acquisition on a single machine at the same time, and conducting detection, analysis and evidence collection on various illegal activities by using the Linux-based embedded technology in combination with the watchdog technology and the network management function. The monitoring system based on the invention has the advantages of high stability, low mistaking and missing rate and high anti-interference capacity, and the monitoring system can effectively filter the interference caused by bicycles, passersby and light; and the monitoring system has flexible, customized monitoring modes, thereby meeting the monitoring requirements under complex environment.