Abstract: Aiming at the problems that the surface deformation is complex under the condition of repeated mining of adjacent working faces and the conventional D-InSAR method is easily affected by factors such as time decorrelation and atmospheric delay, this paper takes Dongtan Coal Mine as the research object, and adopts the SBAS-InSAR method to process the 40-scene Sentinel-1A data, the annual average subsidence rate and time series accumulated subsidence of the study area were obtained, and the deformation characteristics were analyzed. The results show that the mining effect of 6303 adjacent working face on the existing working face is significant. Under the mining conditions of adjacent working face, the surface subsidence rate is fast, the scope is wide, and the subsidence basin shape is irregular. The subsidence amount of 6303 working face in the strike and inclination is obviously different, showing the characteristics of asymmetry. InSAR technology can effectively monitor the surface subsidence phenomenon of adjacent mining face, which can provide a reference for the analysis of surface deformation in mining area under similar complex mining conditions.