Abstract: Coal mining under villages is prevalent in China, and the resulting surface movement and deformation can cause considerable damage to villages. Delineating the impact area of surface subsidence caused by coal mining is a crucial approach to resolving compensation disputes between mining companies and owners of buildings/structures. To address mine-village disputes, this study selects 60 Sentinel-1A images acquired from June 2019 to June 2021 to obtain the surface subsidence of working faces 13121 and 13321 in the Gubei Mining Area of Huainan by using the SBAS-InSAR technique. Additionally, a sectional analysis of surface subsidence is conducted to obtain the spatio-temporal evolution characteristics of the mining subsidence’s impact area as the working faces progressed. Based on the surface subsidence data, the boundaries of the mining subsidence impact area are delineated. The analysis of subsidence in the study area reveals that significant surface subsidence occurred after mining in working faces 13121 and 13321 in the Gubei Mining Area, with a maximum cumulative subsidence of approximately 330 mm and a maximum subsidence rate of approximately 165 mm/a. The subsidence basin exhibites a “bowl”-shaped pattern, and the analysis indicates a notable spatio-temporal correlation between surface subsidence and mining activities. Both the magnitude and extent of subsidence increased with mining progress, and the subsidence center’s deviation direction is consistent with the mining direction, conforming to mining subsidence characteristics. A comparison with leveling data shows that the maximum deviation of the InSAR monitoring results is 43.8 mm, the minimum deviation is 0.1 mm, and the root mean square error is 8.7 mm, indicating sub-centimeter-level accuracy. Therefore, delineating the mining subsidence impact boundary based on a 10 mm subsidence threshold is deemed highly accurate. After mining in working faces 13121 and 13321, the entire areas of Zhaimiao Village, Xinzhuangzi, and Zhaijiamiao are affected by surface subsidence, while most of Maolizhuang is affected, but Baiweizi and Gaozhuang Villages remains unaffected. The research findings demonstrate that SBAS-InSAR technology can provide technical services for delineating mining subsidence impact boundaries and assessing mining-induced damage in mining areas.