To provide a dome switch capable of improving workability in its electrical connecting, and reducing a housing space.

A dome switch 22 comprises: a front sheet 25 having a dome shape projections 32 which project to the outer surface side but reversible in the projecting direction, and also have an electrode 33 on respective inside surface; FPC 27 (circuit body) which has contact points 39 for contacting with the electrodes 33 respectively, when respective projections 32 are reversed to the inside; and a circuit body supporting plate 28 being tight on the FPC 27. In such a structure, a connector housing 41 is formed in the circuit body supporting plate 28, and an external connecting portion 37 led out from the FPC 27 is fixed on the inside surface of the connector housing 41.