Abstract: Geothermal exploration in urban and suburban Beijing areas is a challenging task because of the high-level ambient noises. The paper summarizes several successful applications of the CSAMT method to geothermal exploration in the Beijing area. By carefully selecting the output power, operating frequency, transmitter length, and receiver spacing, we were able to accurately locate geothermal reservoirs deeper than 2000 meters. In the Beijing area, the CSAMT is particularly useful in locating hot-water-bearing faults.