Air-space-ground integrated road collapse monitoring method and system

The invention provides a space-air-ground integrated road collapse monitoring method and system, and the method comprises the steps: obtaining an urban road network settlement value, an urban road network crack distribution state and a real-time road curvature change value of a to-be-detected region, and carrying out the space-air-ground integrated multi-source data collection; and establishing a construction and road risk assessment early warning model based on the acquired data, performing numerical simulation calculation based on the model, delimiting risk points and risk areas, and determining an early warning management and control area. According to the invention, remote sensing star satellites are organically fused to monitor settlement deformation of a large-range road network of a city, unmanned aerial vehicle aerial photogrammetry to monitor road crack development, a measurement robot monitors road deformation in real time, and distributed optical fibers monitor stress change in the road in real tim