An ultrasonic diagnosis apparatus according to an embodiment includes a scan controller, an image generator, a detector, an image generation controller, an image combiner and a display controller. The scan controller causes to execute a first scan for performing ultrasound transmission in a first direction and a second scan for performing ultrasound transmission in each of a plurality of directions. The image generator generates first ultrasonic image data through the first scan and generates a second ultrasonic image data group through the second scan. The detector detects a line segment based on the second ultrasonic image data group. The image generation controller controls to generate needle image data based on information about the line segment. The image combiner generates composite image data of the first ultrasonic image data and the needle image data. The display controller controls the composite image data to be displayed.