The invention discloses an intelligent passing system for a signal lamp road junction based on V2X communication. The intelligent passing system comprises a signal lamp data collection module, a V2X communication roadside system, a cloud data communication platform, a V2X communication vehicle-mounted system and a vehicle-mounted controller, wherein the signal lamp data collection module collectsstate information of a signal lamp; the V2X communication roadside system sends collected signal lamp relevant information to the cloud data communication platform; the cloud data communication platform loads map information of each signal lamp road junction, performs fusion on obtained signal lamp information and map data of corresponding road junctions, judges a motion state of a vehicle, and sends relevant information of a signal lamp at a front target road junction of a vehicle motion; the V2X communication vehicle-mounted system receives the information, send by the cloud data communication platform, of the signal lamp at the front road junction, and sends the information to the vehicle-mounted controller; and the vehicle-mounted controller is used for receiving the information of thesignal lamp and obtaining environment perception information, and performs behavior decision and control according to obtained phase position and timing information of the signal lamp. A vehicle is automatically controlled according to a state of a signal lamp to drive in terms of a traffic rule, so the passing efficiency at a road junction is improved.