Abstract:In this paper, the SBASInSAR time series method is used to process the Sentinel1A data of 17 scenes from 2019/9/19 to 2020/3/29. The average annual subsidence rate in the northern coal mine area of Ji'ning city has been obtained, 6 subsidence funnels have been detected, and the maximum subsidence rate can reach 242mm/y. It is showed that the SBASInSAR timeseries method can obtain enough monitoring objects in the monitoring of surface deformation in the mining area, and detect the distribution and settlement range of subsidence funnel completely. It will provide reliable technical support for the monitoring of surface deformation in the mining area.