Harmonic imaging method and ultrasound medical device for same

A harmonic imaging method and an ultrasound medical device for the same are disclosed. As a technique for generating and image-processing an N-th order harmonic image, provided are a harmonic imaging method capable of improving a frame rate by transmitting plane waves having a phase difference and synthesizing reflected signals corresponding to the plane waves by using a pipeline method, and an ultrasound medical device for the same.