Provided is an ultrasonic probe having a coupling fluid compensation function； a compensation member (3) is disposed inside of an accommodation chamber (11)； a compensation chamber (31) is located in the accommodation chamber (11) and is sealed and separated therefrom. A gas inlet and outlet (32) of the compensation chamber (31) is arranged open, such that same may be in communication with the exterior, ensuring that the gas in the compensation chamber (31) is at the same pressure as the exterior. The compensation member (3) is made at least partially of a deformable flexible material； the accommodation chamber (11) is filled with the coupling fluid, which also acts on the outer wall of the flexible material of the compensation member (3)； when the pressure of the coupling fluid changes, it can cause deformation of the flexible material of the compensation member (3), thus the pressure of the coupling fluid is adjusted by means of changing the storage space of the coupling fluid. As the compensation member (3) is disposed inside of the accommodation chamber (11), the compensation member (3) occupies a part of the space of the accommodation chamber (11), thus reducing the amount of coupling fluid for filling； furthermore, the compensation member (3) built into the accommodation chamber (11) will not cause the overall volume of the probe to increase； thus the ultrasonic probe is compact, which is more advantageous to a smaller design.L'invention concerne une sonde ultrasonore ayant une fonction de compensation de fluide de couplage ； un élément de compensation (3) est disposé à l'intérieur d'une chambre de réception (11) ； une chambre de compensation (31) est située dans la chambre de réception (11) et est scellée et séparée de celle-ci. Une entrée et une sortie de gaz (32) de la chambre de compensation (31) sont disposées en position ouverte, de telle sorte qu'elles peuvent être en communication avec l'extérieur, assurant que le gaz dans la chambre de compensation (3
