Abstract:In view of the shortcomings of conventional mining area surface subsidence monitoring methods, based on D InSAR technology, differential interference processing has been carried out on RDARSAT 2 radar data of two scenes from December 18, 2016 to February 25, 2017. Mining subsidence information within the monitoring period in the study area has been obtained, and three subsidence basins have been monitored. Combining with actual situation, the monitoring results and accuracy have been analyzed. It is showed that D InSAR technology can effectively monitor the distribution and characteristics of surface subsidence in mining areas, and can provide technical references for studying dynamic monitoring of surface subsidence in large mining areas.