Abstract:We use SBAS-InSAR technology to process 65-view Sentinel-1A SAR data of Heze to obtain the subsidence results of the city from 2017-05-20 to 2021-05-23. We finely analyze the ground subsidence of each imaging period in combination with the underground coal mining, and the actual level data are used to SBAS-InSAR monitoring results for accuracy verification. The results show that the ground subsidence in Heze accelerates continuously during studying period, and the subsidence in Yuncheng area is more serious, with the maximum annual average subsidence rate reaching -311 mm/a and the maximum cumulative subsidence amount reaching -1 269 mm. The subsidence location and subsidence change trend monitored by SBAS-InSAR are consistent with leveling results, but in the area of severe settlement, the amount of settlement monitored by SBAS-InSAR is somewhat different from leveling data.