Abstract: A lithotripter with stone tracking and locking localization system comprises an X-ray machine, an ultrasound scanner, an ultrasound probe, a movable platform, a monitor, a system controller and a stone tracking and locking localization system. The X-ray generator is mounted on the end of rotational arm, capable of illuminating across a range from 0 to 30 degrees, especially at 0 and 30 degrees, whereby the position of stones embedded in a patient's body can be located in a three-dimensional way. The ultrasound probe is located under the movable platform and shock-cup, whereby the image of a stone embedded in the patient can be displayed on the monitor after the ultrasound probe moves and contacts the surface of body. The stone tracking and locking localization system then lock on the position of the stone.