PROBLEM TO BE SOLVED: To provide a viscosity/elasticity measuring device that requires a smaller amount of sample substance to be detected than a conventional one, uses a disposable sample container for storing the substance to be detected as an inexpensive one and measures a wide range of viscosity of the sample substance from low viscosity to high viscosity.SOLUTION: A viscosity/elasticity measuring device according to the invention includes: a rotor that is partly or wholly made of a conductive material, includes a disk fixed vertically to a rotary shaft and includes a smoothly-convexed shaft tip of the rotary shaft; a sample container in which a sample whose viscosity is detected is placed and a rotor is arranged in a contacting state between the disk and the sample; a magnet that is arranged around the sample container and applies a magnetic field to the rotor; a rotation control part that applies a rotational magnetic field to the rotor by driving the magnet and rotates it by giving rotation torque; a r
