The invention provides a focusing sound-concentrating system, and belongs to the technical field of ultrasonics. According to the focusing sound-concentrating system, the problem of low sound pressureat a focal region of an existing ultrasonic transducer can be solved. The focusing sound-concentrating system comprises a high-pressure chamber, a pressurizing liquid-supplying assembly and an ultrasonic transducer, wherein the high-pressure chamber is used for accommodating a pressurized sound bearing medium, the pressurizing liquid-supplying assembly is used for providing the pressurized soundbearing medium into the high-pressure chamber, and the ultrasonic transducer is arranged in the high-pressure chamber and used for emitting ultrasonic waves; the ultrasonic transducer comprises a plurality of ultrasonic emitting units for emitting ultrasound from a sound production surface, a cavity is formed inside the sound production surface, the surface of the cavity has a function of reflecting the ultrasonic waves, and the cavity is a resonant cavity; and standing waves can be formed by the ultrasonic waves emitted by the ultrasonic emitting units and reflected waves reflected by the surface of the cavity and focused in the focal region of the ultrasonic emitting units.