The invention provides a lane-occupying construction hazard management and control early warning system and method. The lane-occupying construction hazard management and control early warning system comprises an early warning cone barrel body, wherein M cameras are embedded on the outer surface of the early warning cone barrel body, M is a positive integer, the M cameras are annularly arranged andare positioned at the position 5/6-6/7 of the height of the early warning cone barrel; a supporting frame is arranged in an early warning cone barrel, a circuit board is detachably installed on the supporting frame, the circuit board comprises a controller, a wireless transceiver module and a GPS module; the transceiver end of the wireless transceiver module is connected with the transceiver endof the controller, and the position signal output end of the GPS module is connected with the position signal input end of the controller; and the controller sends the collected construction positionsand road congestion conditions to a remote monitoring center, and the remote monitoring center sends the collected construction positions and road congestion conditions to each traveling vehicle. According to the lane-occupying construction hazard management and control early warning system and method, early warning can be given to the traveling vehicles in a lane-occupying construction area, drivers are reminded to pay attention to driving safety, and accidents are avoided.