An ultrasonic probe (100), and an ultrasonic detection device provided with said ultrasonic probe (100). The ultrasonic probe (100) comprises: an ultrasonic transducer array (110), used for emitting and receiving ultrasonic waves； a conduction apparatus (20), arranged at the front end of the ultrasonic transducer array (110), the conduction apparatus (20) comprising fluid cavities (130, 130') filled with fluid (133, 133'), the fluid cavities (130, 130') having mutually communicating openings (131, 131') and energy receiving ports (132, 132'), the openings (131, 131') being arranged on the front surface of the conduction apparatus (20) and being covered by an elastic film (134)； and an energy application apparatus (140), connected to the energy receiving ports (132, 132'), and used for applying energy to the fluid (133, 133') in the fluid cavities (130, 130'), such that the elastic film (134) vibrates to produce shear waves. The ultrasonic detection device uses the entire ultrasonic transducer array (110) to receive ultrasonic wave signals containing shear wave information, without the need for interpolation or beamforming of the ultrasonic wave signals, thereby improving the convenience and precision of measurements； thus, imaging effects are good, the amount of data processing is small, and detection speed is fast. The ultrasonic detection device supports a transient elastography function and also supports a traditional ultrasonic imaging and transient elastography combined function.
