Abstract: The present application discloses a sensing signal receiving system and method. The system includes an interface module configured to receive a sensing signal, a narrowband frequency-selective module configured to determine a frequency-selective signal in the sensing signal according to a preset receive frequency, a high amplification module configured to amplify the received frequency-selective signal to obtain an amplified signal, and an in-phase comparison module configured to convert the amplified signal into a TTL standard signal. A frequency of the frequency-selective signal is the preset receive frequency or is a narrowband section including the preset receive frequency. The narrowband frequency-selective module is further configured to output the frequency-selective signal to the high amplification module.