According to one embodiment, an ultrasonic diagnostic apparatus includes a transceiver part, a signal processing part and an image generation part. The transceiver part controls an ultrasonic probe to perform a first and second scans. The first scan transmits a first ultrasonic wave and an ultrasonic wave, obtained by modulating an amplitude of the first ultrasonic wave, to scanning lines distributed three dimensionally, and receives first reflected waves. The second scan transmits a second ultrasonic wave to scanning lines distributed two dimensionally during the first scan, and receives second reflective waves. The transceiver part obtains first and second reception signals based on the first and second reflected waves. The signal processing part generates composite signals by combining the first reception signals. The image generation part generates three dimensional ultrasonic image data based on the composite signals, and two dimensional ultrasonic image data based on the second reception signals.
