The invention relates to a road tunnel traffic risk early warning system based on the vehicle operation monitoring, which belongs to the field of tunnel traffic early warning. The road tunnel trafficrisk early warning system comprises a data acquisition module, an algorithm supporting module, a data storage module, a data service module and a data application module; and the road tunnel traffic risk early warning system hardware consists of hardware including a high-definition network camera, a video processing industrial personal computer and a 4G router. By adopting the road tunnel trafficrisk early warning system, the real-time structuralization is performed on a front-end sensed video and picture, the structuralized high-value data can be analyzed and stored, a structuralized resultcomprising a structuralized tag and a picture can be consulted and checked at any time, the picture can be searched and an object can be found by a user according to conditions, a search result can bedisplayed in a picture or list manner according to the selection. The tunnel traffic risk can be evaluated in real time, and the road tunnel traffic risk early warning system has important significance for ensuring the road traffic security.