Expressway tunnel construction early warning method and system based on BIM

The invention provides a BIM-based highway tunnel construction early warning method and system, and the method comprises the steps: recognizing a to-be-early-warned event in a BIM model of a highway tunnel construction site; early warning the event to be early warned to an early warning object of the event to be early warned; when the pre-warning object views the BIM model, continuously tracking event development information of the event to be pre-warned in the BIM model; generating a tracking view template of the event development information; and guiding the early warning object to track and view the event development information based on the tracking view angle template. According to the method, the BIM model is introduced, the to-be-pre-warned event in the BIM model of the highway tunnel construction site is automatically identified, and when the to-be-pre-warned event is identified, the pre-warning object is pre-warned, so that a manager does not need to monitor and pre-warn the highway tunnel constructi