To provide a high-reliability switch and its manufacturing method, wherein thinning of the switch is possible and the mounting accuracy of its contact is stable.

This is provided with a movable contact 5 and a stationary contact 6 arranged in a cabinet 1 connectable and releasable, first and second terminal materials 2, 3 of which the movable contact 5 and the stationary contact 6 are arranged on one end side and which are embedded in the cabinet 1, and outside connecting parts 2c, 3c which are arranged on another end side of the first and the second terminal materials 2, 3 and which are protruded outward of the cabinet 1. At least either the first or the second terminal materials 2, 3 is formed so that it will be exposed on the plate-face by a metal plate material 20, in which a belt-type contact material 30 is embedded, and the movable contact point 5 or the stationary contact 6 has been formed at the surface of the contact material 30, exposed to the plate-face of the metal plate material 20.