The invention relates to an intelligent reversible lane traffic signal system, comprising traffic signal lights, sensors arranged on the traffic signal lights to detect traffic conditions, a wireless communication module, and a monitoring module arranged in a monitoring room; the sensors transmit traffic condition information to the monitoring module through a wireless communication module, recording and processing the information in the monitoring module, and transmitting the processed information to the traffic signal lights for adaptive displaying. The intelligent reversible lane traffic signal system helps improve traffic safety controllability of a reversible lane.