To provide a dome switch capable of minimizing a sound generated when reversing a protruding part.

A damping member 23 absorbing vibration to reduce the sound generated when reversing the protruding part 28 is arranged in the periphery, outer surface and inner surface of the protruding part 28 of a surface sheet 22 having the dome like protruding part 28 protruding toward an outer surface side and capable of reversing toward an inner surface side. In other words, a polydome switch (the dome switch) 21 provided with the damping member 23 is composed. It is also favorable to arrange a second damping member having the same function as the damping member 23 in the protruding part outer surface and/or the protruding part inner surface excluding a rising portion 31 of the protruding part 28.