A probe element includes a conduction pin, a cylindrical barrel, and a bushing. The barrel accommodates the conduction pin inside thereof such that the tip portion of the conduction pin is exposed to the outside. The bushing holds the conduction pin inside the barrel in a state in which the tip portion is movable, and has predetermined permittivity. The conduction pin includes a tip portion, an intermediate portion partially accommodating the tip portion, and a cylindrical socket portion coupled to the intermediate portion. A distance between the socket portion and the inner wall surface of the barrel, and a distance between the intermediate portion and the inner wall surface of the barrel in a direction orthogonal to an extending direction of the barrel are different from each other.