Abstract: In recent years the migratory bird habitat in the Yellow (Bohai) Sea has been eroded so seriously that the shoreline distribution in the habitat changes rapidly. This poses ecological and economic challenges to the coastal zones. Based on 8 phases of Sentinel-2 and Landsat 8 satellite remote sensing images obtained from 2013 to 2022, the shorelines in the migratory bird habitat are extracted by using the human-computer interaction methods and digitized through the Digital Shoreline Analysis System (DSAS) of the ArcGIS platform. And then, the spatial and temporal distributions of interannual and intraannual shoreline changes are calculated out and the causes and influences of erosion-silting change are discussed. The results indicate that from 2014 to 2022, the erosion of the migratory bird habitat changed from original wide range but small erosion rate to a concentrated range but large increase in erosion rate, indicating a seriously aggravaed erosion harm, and the erosion occurred mainly in spring and summer. The shoreline changes in the study area are comprehensively affected by multiple factors such as sediment sources, nearshore currents, coastal feature types, artificial structures and storm surges. It is of great significance to the ecological and economic protection and management of local coastal zone to clarify the dynamic changes of key eroded coast segments in the migratory bird habitat in recent years and analyze their causes.