To store cine data obtained over a long time and to easily regenerate the stored cine data by another apparatus in an ultrasonic diagnostic system having a function for storing the data in a cine memory in another memory medium.

The ultrasonic diagnostic system includes sound ray data forming means 12 and 13 for forming ultrasonic sound ray data, a first image forming means 14 for forming image data for display from the sound ray data, a vector cine memory 19 for holding the sound ray data formed by the sound ray data forming means 12 and 13 in the quantity corresponding to a plurality of frames in a time series manner, a second image forming means 22 for forming image data from the sound ray data held in the vector cine memory 19, an animation forming means 23 for forming animation data from a plurality of the image data formed by the second image forming means 22, and an animation memory means 24 for storing the animation data formed in the animation forming means 23 in a predetermined memory medium.