<;P>;PROBLEM TO BE SOLVED: To provide a method for precisely measuring skin and visualizing an internal local elasticity. <;P>;SOLUTION: The method is for measuring skin internal elasticity using an ultrasonic diagnostic device for imaging distortion inside a subject. According to the method, a pressurizing and oscillating means 7 provided for an ultrasonic probe 1 pressurizes the subject via an inclusion of the speed of sound 1,500 to 1,600 m/s in a fixed cycle to measure elastic modulus inside the subject. <;P>;COPYRIGHT: (C)2010,JPO&INPIT