To provide an MEMS switch in which downsizing is achieved and on/off of an electric current of a large capacity can be carried out surely.

A silicon substrate 1 has a support part 2, and one end of a plate-like magnetic body 3 is fixed to the support body 2. A first contact 4A is installed inside the other end of the magnetic body 3 via an insulating layer 3a, and a second contact 4B is installed on the silicon substrate 1 opposed to the first contact 4A. Furthermore, a first electrode 6A is installed inside the magnetic body 3 via the insulating layer 3a, and a second electrode 6B is installed on the silicon substrate 1 opposed to the first electrode 6A. When a magnet 11 moves from A position to B position, the magnetic body 3 is attracted by its magnetic force, and furthermore, since electrostatic attractive force is generated in the magnetic body 3 by a direct current power supply (+B) applied to the first and second electrodes 6A, 6B, the first and second contacts 4A, 4B are surely switched on.