At present， land subsidence is a geological disaster with significant harm， which seriously affects the coordinated development of regional construction planning， economy， environment， and society， and poses a significant threat to urban development and human life and property safety. Xian County is located in the western part of Cangzhou City， Hebei Province， and is an area with severe land subsidence， which is one of the key flood storage and detention areas in China. Therefore， it is of great significance to classify the prone areas of land subsidence in Xian County and adopt precise prevention and control measures. In this paper， six impact factors namely deep groundwater level， shallow groundwater level， Quaternary thickness， cumulative settlement， settlement rate， and road network density are selected， and each township in the evaluation area is taken as the evaluation unit， the weight of land subsidence influencing factors is determined by the gray correlation method， and the superposition analysis is carried out by the spatial analysis function of ArcGIS to partition the land subsidence susceptibility in Xian County in order to provide suggestions and basis for the scientific prevention and control of land subsidence.