Ultrasonic diagnostic apparatus including: a tomogram constructing means an elasticity information calculating means an elasticity image constructing means a display means an estimation data generating means configured to generate estimation data for estimating the characteristic of a biomedical tissue on the basis of the elasticity image an estimation data selecting means configured to select at least one parameter used for the estimation of the characteristic of the biomedical tissue and to make the selected parameter displayed on the display means, an analyzing means configured to analyze the elasticity image using at least one parameter selected by the estimation data selecting means and to make the result of analysis displayed on the display means wherein the display means displays the parameter used for the estimation of the characteristic and the result of analysis.