An ultrasonic diagnosis apparatus sets transmission conditions that are different depending on a scanning direction so that a transmission sound field in a scanning region is uniform in a scanning of ultrasonic beams in one frame; transmits ultrasonic beams to a subject under the thus set transmission conditions; and samples a harmonics component from a ultrasonic echo signal reflected from a subject of the thus transmitted ultrasonic beams, thereby obtaining a harmonics ultrasonic image of the subject. According to this ultrasonic diagnosis apparatus, in the case of harmonics imaging as well, an entirely uniform image quality with less non-uniformity is achieved, and information useful for diagnosis can be provided on a clinical application site.