The relationship between geomagnetic low-point displacement and strong earthquakes in the Chinese Mainland was studied in this paper based on observation data from the national geomagnetic network center. A good correlation exists between the two aspects. One or more low-point displacement anomalies emerged within two months before numerous M＞5 earthquakes, and the earthquakes usually occurred within 300 km of the boundary of low-point displacement anomalies. Four geomagnetic low-point displacement anomalies occurred two months before the Menyuan M6.9 earthquake in Qinghai Province on January 8, 2022. Meanwhile, three geomagnetic low-point displacement anomalies occurred two months before the Menyuan M6.4 earthquake in Qinghai Province on January 21, 2016, and the Ganzhou M5.0 earthquake in Gansu Province on September 16, 2019. One or more intersection regions will be formed when the boundaries of multiple low-point displacement anomalies are superimposed on the same graph. Results showed that the earthquakes occurred near the intersection region of low-point displacement boundaries. Possible earthquake regions can be determined by combining the distribution of active tectonic faults, the occurrence of large earthquakes in history, potential risk areas of strong earthquakes predicted in the medium and long term, and annual risk areas of earthquakes in China. This study markedly narrows down the prediction range of earthquake location with the geomagnetic low-point displacement method.