Provided is a suction cup device with which the work of attaching the suction cup to the attachment surface, and the work of releasing the attachment can be performed quickly, and with which a fixture member comprised by a fixture that is equipped with a suction cup device can be arranged on the top face of the suction cup device. The suction cup device comprises an operation member capable of reciprocating movement in a direction that intersects with a suction cup support shaft, and a means for applying pulling force to the suction cup support shaft as a result of the movement of the operation member in a predetermined direction. Preferably, the suction cup device comprises an operation member capable of reciprocating sliding movement in a direction that intersects with a suction cup support shaft, and a means for applying pulling force to the suction cup support shaft as a result of the sliding movement of the operation member in a predetermined direction.