To provide an ultrasonic diagnostic apparatus capable of easily and accurately detecting a puncture needle. An ultrasonic diagnostic apparatus U for generating an ultrasonic image inside a subject on the basis of an ultrasonic signal received by reflection inside the subject includes: needle position determination sections 162, 163 for acquiring a depth feature value related to signal intensity in an area deeper than a determination target area concerning the distribution of ultrasonic signals in the incident direction of an ultrasonic wave to be made incident to the subject with respect to each area of the ultrasonic image, and determining the position of a puncture needle inserted to the subject on the basis of the depth feature value； and an emphasis processing section 164 for performing processing to emphasize the puncture needle position determined in the ultrasonic image.
