Abstract: Mentougou District is located at the junction of Yanshan and Taihang mountains, where mountainous areas account for 98.5% of the land area, making it the core region of Xishan in Beijing. Over the long geological history, it has left behind rich geological remains. In response to the lack of systematic research on the distribution characteristics and formation evolution of geological remains in this area, as well as the constraints on their protection and utilization, based on full utilization of previous research results, this study has systematically reviewed the types of geological remains in this area through remote sensing interpretation, ground investigation, and rock and mineral identification. The results show that: (1) The geological remains in this area are rich and diverse. Currently, 100 types of geological remains have been identified, covering geological profiles, geological structures, paleontological fossils, and landscape geology, among others. (2) The distribution of geological profile types such as the Qingbaikou system and Malan loess is closely related to the exposure area of the Mesoproterozoic-Quaternary system strata; folds and faults are mainly distributed in the Zhongganshan region from Miaofengshan Town to Zaitang Town; acidic rock bodies of the Yanshan period are mainly distributed along major faults; loess terraces, river terraces, gorges, and water landscape types are mainly distributed along the main channel of the Yongding River and its major tributaries. (3) Multiple marine intrusions in this area have created many stratigraphic profile relics; the Qin Yu movement, Jixian movement, and Yanshan movement have left many structural features、faults、folds and other structural traces, which have also dominated the formation of multiple mineral deposits. The research results can provide important references for further in-depth research on geological heritage and their protection and utilization in this area.