The fourth movable contact of a slide switch includes a first and a second U-shaped contact parts arranged so that opposite ends thereof are coupled to a movable contact main body to form an almost U shape and small contact points are surrounded by larger contact points. The first and the second U-shaped contact parts are slidingly moved in a direction crossing the arraying direction of the projections at the tips of the U-shaped contact parts in order to connect/disconnect the projections of the U-shaped contact points to/from a fixed contact thus tuning on/off the switch. The first and the second U-shaped contact parts have opposite ends coupled to the movable contact main body and strong in the movement in the arrow directions.