The geomagnetic vertical component data of 31 geomagnetic stations in Sichuan Province and its adjacent areas since 2015 were analyzed with the geomagnetic load-unload response ratio method. Results show six groups of high anomaly values of the geomagnetic load-unload response ratio. Five of these groups correspond to earthquakes above M5.0. The anomalies usually appear within 6 months before an earthquake, and the epicenter is located near the threshold line of the abnormal area. The high anomaly values of the geomagnetic load-unload response ratio are related to the changes in the induced magnetic field resulting from the electrical conductivity change in the seismogenic zone.