In an EL-combined sheet switch, electromagnetic waves are blocked, and appliances with the sheet switch are prevented from malfunctioning. A circuit board 1 having a driving circuit mounted on its back surface and having a switch pattern la formed on its front surface is combined with a contact sheet 3 having a counter electrode 4 on its back surface in such a manner that the counter electrode 4 faces the switch pattern la to construct a switch mechanism. To the front surface of the contact sheet 3, attached is an EL sheet 7, and a shield layer 5 is provided between the contact sheet 3 and the EL sheet 7. In the EL-combined sheet switch with that constitution, the electromagnetic noise from the EL sheet 7 is blocked by the shield layer 5. The shield layer 5 is connected with a ground electrode 1b formed on the circuit board 1.