Provided is a switch for vehicles, including a first switching device which performs the electrical connection/disconnection between a battery and a stop lamp and a second switching device connected to a control device which opens and closes the first switching device based on the magnitude of the magnetism of a magnet mounted on an operating body. Various controls such as auto-cruise control and so on as well as the turn on/off of the stop lamp can be simultaneously performed by the one magnet mounted on the operating body of the switch for vehicles.