To provide a method for providing a small sized pressure sensor unit with a simple structure that can be easily mounted on a handy type probe to measure viscoelasticity property of a skin in short time, and a measurement device for measuring viscoelasticity property of a skin for executing the method.SOLUTION: A method is configured to use, as means for measuring repulsive force which is transmitted from a skin since immediately after pressing when a substantially hemispherical depressor is instantly pressed to a surface of the skin by a prescribed quantity, a pressure sensor in which two lamination type piezoelectric elements having the same specification are jointed to a support plate in proximity, a substantially hemispherical column-shaped depressor is jointed to one lamination type piezoelectric element, and the two lamination type piezoelectric elements are electrically connected in a differential connection.SELECTED DRAWING: Figure 8
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