Abstract: An ultrasonic emulsifier includes an emulsifier body (201), on which there are provided: an irrigation module (202) for dispensing a liquid into an eye, the liquid containing targeted microbubbles (401) for acting on a lens of the eye; an ultrasound module (203) for producing ultrasound waves for acting on the eye and enabling the targeted microbubbles (401) to act on the lens (101) of the eye; and a suction module for aspirating the dispensed liquid and/or the broken-down lens (101) from the eye. This ultrasonic emulsifier can overcome the problem of possible damage to other parts of the eye during cataract surgery and consequent complications.