内蒙古不连沟矿区地质构造复杂，长期的煤炭资源开采引发了显著的地表沉降与形变，对矿区生产安全及周边生态系统造成了潜在影响。本文基于SBAS-InSAR技术，利用2021年1月21日至2025年4月6日期间获取的54景Sentinel-1ASAR影像，开展了地表形变的时序反演与沉降分析。研究揭示了近五年来不连沟矿区地表沉降的时空演化特征，并探讨了其主要致变因素。结果显示，矿区整体形变趋于平稳，但局部区域仍存在明显的持续沉降现象，其主导原因与煤层开采活动密切相关。本研究成果可为矿区地面沉降的持续监测、变形规律认知以及后续资源开采与生态修复提供科学支撑。

The Nianligou mining area in Inner Mongolia features a complex geological structure, with long-term coal extraction causing significant ground subsidence and deformation, impacting safety and ecosystems. This study employed Small Baseline Subset InSAR (SBAS-InSAR) technology to analyze ground deformation using 54 Sentinel-1A images from January 21, 2021, to April 6, 2025. Results revealed the spatial and temporal patterns of subsidence over the past five years, indicating overall stability but notable ongoing subsidence in certain areas, primarily linked to coal mining. The findings provide valuable insights for monitoring ground subsidence and guiding future resource extraction and ecological restoration.