ELECTROCHEMICAL MEASUREMENT PROBE AND CORROSION EVALUATION METHOD

PROBLEM TO BE SOLVED: To provide an electrochemical measurement probe and a corrosion evaluation method, which prevent electrolyte from leaking on a non-flat portion and allow for high accuracy measurement.SOLUTION: In the electrochemical measurement probe, a counter electrode 15 and a reference electrode 16 to which DC current is applied are inserted in a probe 1 filled with an electrolyte 14 containing at least sodium chloride, a sponge 13 containing the electrolyte 14 is provided on a tip of the probe 1 to be contacted with a measurement object, and side faces of the sponge 13 are exposed. The sponge 13 preferably has 30% compression stress of 3.0 to 4.7 kPa, a pore diameter of 130 to 200 μm, and a water retention value of 1150 to 1300%. The electrolyte 14 preferably contains a surface active agent, and preferably contains water-soluble polymer and has a viscosity of 30 to 1000 mPa s.