Abstract: Coal mining subsidence is an important factor causing surface damage in mining areas.In order to explore the diversity of coal mining subsidence monitoring methods, the subsidence of 1305 and 1307 working faces in Zhaoxian Coal Mine is studied by multi-period UAV LiDAR results and InSAR technology.The SBAS-InSAR technology and UAV LiDAR results are used to analyze the surface subsidence and subsidence law of 1305 and 1307 working faces in Zhaoxian Coal Mine from July 2021 to February 2022.The results show that the simultaneous UAV LiDAR and InSAR technology have similar effects in the study of coal mine subsidence, and the law of settlement curve has high similarity, but the resolution of InSAR data is relatively low, and there is a certain monitoring error compared with LiDAR results.