To provide a high-performance moving contact body capable of always providing a good click feeling, and of preventing a flux flow or the like in a contact part; and to provide a switch device using it.

This switch device 11 using this moving contact body 1 is equipped with: the moving contact bodies 1 each having a reversing part 2 formed by bulging a metal plate to one side; and a printed circuit board 12 composed by forming fixed contact parts 13 each allowing the ceiling surface of the reversing part 2 to be electrically connected to it by contacting each other. The contact body 1 is so structured that fixing parts 4a fixable to the circuit board 12 are formed on arm parts 4 at positions distant from connection parts 2a formed extendedly outward from the circumferential edge of the reversing part 2; and when the reversing part 2 is pressed toward the other side (the lower side) with the fixing parts 4a fixed to the circuit board 12, the reversing part 2 is reversed, and brought into contact with and electrically connected to an individual contact 13a of the contact part 13.