A release switch device includes: a button; a first elastic member to be pressed and displaced by the button; a pressure-sensitive sensor to face the first elastic member at an interval, to be pressed and displaced by the button with interposition of the first elastic member, when the button is displaced exceeding a predetermined stroke amount; and a second elastic member to be pressed and displaced by the button with interposition of the first elastic member and the pressure-sensitive sensor. When the button is displaced by a first stroke amount equal to or larger than the predetermined stroke amount, the pressure-sensitive sensor receives a first repulsive force of the second elastic member and outputs a first output value. When the button is displaced by a second stroke amount larger than the first stroke amount, the pressure-sensitive sensor receives a second repulsive force larger than the first repulsive force of the second elastic member and outputs a second output value.