Probe easy to replace and fetus-voice meter with same

The utility model discloses a probe easy to replace and a fetus-voice meter with the same, and relates to the technical field of medical care instruments. The probe body is provided with a probe body mounting surface, the ultrasonic transducer assembly is provided with a transducer assembly mounting surface, and a detachable structure is arranged between the probe body mounting surface and the transducer assembly mounting surface; a probe body mounting surface magnet is arranged on the probe body mounting surface, and a transducer assembly mounting surface magnet is arranged on the transducer assembly mounting surface; by adopting the magnetic connection design of the probe body and the ultrasonic transducer assemblies, the probe can be configured with a plurality of ultrasonic transducer assemblies with different frequencies to meet different detection requirements, a magnetic structure is adopted between the probe body and the ultrasonic transducer assemblies, the ultrasonic transducer assemblies of the pro