Abstract: A numerous of coal mining goafs were left by long-term coal mining in Western China. Some of these goafs remain untreated and have serious collapse potential, which will severely restrict local economic development and social stability. Therefore, it is essential to conduct deformation surveys of goafs in these regions. This study comprehensively integrated InSAR monitoring, UAV aerial surveying, remote sensing interpretation, ground surveys, and microtremor exploration to systematically analyze the distribution characteristics of goafs and the law of ground subsidence. The results showed that InSAR technology could rapidly delineate the boundaries of deformation zones. UAV aerial surveying combined with manual interpretation could accurately acquire the scale and morphological parameters of collapse fractures. Ground surveys and statistical data could clarify the characteristic laws governing ground subsidence. Microtremor exploration measurements revealed that the zones with wave velocities ranging from 550 to 950 m/s corresponded to stable zones subjected to stress, deformation and displacement, and such zones exhibited high consistency with the deformation areas detected by InSAR monitoring. This research verified that the integrated 'Sky-Space-Ground-Geophysics' three-dimensional survey technology possessed high reliability and could provide effective technical support for the investigation of coal mining goafs.