An ultrasonic diagnostic device including: an image acquirer for acquiring an ultrasonic image of an object from ultrasonic waves received by an ultrasonic probe an image memory for preliminary memorizing a volume data of the object, which is acquired by an image diagnostic device a first positional detector for detecting 3-dimensional information of the ultrasonic probe an tomogram obtainer for obtaining a tomogram of the image diagnostic device, in which positions of the tomogram and the ultrasonic image correspond, based on a positional information from the first positional detector a display for displaying the ultrasonic image and the tomogram wherein the ultrasonic image device further including, a selector for selecting predetermined angles of a puncture needle, where angles can be set at fixed values, and the display displays a guideline of the puncture needle on at least one of the ultrasonic image and the tomogram.
