An ultrasonic diagnostic apparatus in which a speckle analysis can be made in a simple manner and an analysis result can be promptly displayed. The ultrasonic diagnostic apparatus includes: a transmitting and receiving unit for converting reception signals into digital signals; a signal processing unit for generating envelope data based on the digital signals; an image data generating unit for generating image data based on the envelope data; a speckle analysis unit for generating speckle analysis result data based on the envelope data; a display unit for displaying an ultrasonic image and a corresponding speckle analysis result; and a ROI setting unit for setting a ROI in the ultrasonic image; wherein the speckle analysis unit includes a memory for storing the envelope data, and a computation part for generating the speckle analysis result data based on the envelope data corresponding to the set ROI.