Tunnel disease monitoring system and method for high-speed train

The invention discloses a tunnel disease monitoring system and method for a high-speed train, and the system comprises a vehicle-mounted laser scanning device which is used for obtaining the three-dimensional graphic data of a current tunnel; a positioner which is used for acquiring current tunnel position information; a cloud server which is used for sending the three-dimensional graphic data of the current tunnel and the position information of the current tunnel to the tunnel disease monitoring platform; and a tunnel disease monitoring platform which is used for comparing the three-dimensional graphic data of the current tunnel and the position information of the current tunnel with original tunnel three-dimensional graphic data and original tunnel position information pre-stored in the BIM model database, and returning the obtained tunnel disease information to the cloud server. By the adoption of the technical scheme, the overall situation of the tunnel can be monitored in real time in the whole process