The present invention detects a lesion site using an ultrasonic probe and irradiates a laser on the detected lesion site to treat the lesion site, thereby having advantages of saving operation time, focusing a laser only on an exact lesion site so as to be treated, reducing an error with respect to the lesion site because even if an irradiation angle of the laser irradiated from a first irradiation part is changed, a target point reached by the laser remains the same.
