A touch sensor switch for easily taking out an output of a touch sensor with high reliability. Push-type switching elements 2A, 2B, and 2C are mounted on a printed circuit board 1, a rubber dome 3 is provided with expanded portions 30A, 30B, and 30C for housing the switching elements 2A, 2B, and 2C, the switching elements 2A, 2B, and 2C are provided with conductive films 41A, 41B, and 41C on an outer surface and a lower face, conductive parts 31A, 31B, and 31C are provided at a conductive part such as an upper surface of the expanded portions 30A, 30B, and 30C of the rubber dome 3, or a wiring pattern of the printed circuit board 1, and the conductive films 41A, 41B, and 41C contact with the conductive parts 31A, 31B, and 31C constantly by a biasing force of the switching elements 2A, 2B, and 2C regardless the operation of switch knobs 4A, 4B, and 4C.