Provided are an actuator device applied to a surgical system, and the like. The actuator device includes: a first magnetic body portion； a first system movable in a predetermined direction or an opposite direction of the predetermined direction； a second system including a second magnetic body portion that moves the first system in the predetermined direction by magnetic force generated between the second magnetic body portion and the first magnetic body portion, and a pressurizing portion capable of applying, to the first system, force in an opposite direction of the predetermined direction and including an elastic body and the like； and a driving unit capable of applying, to the second system, force in the predetermined direction or the opposite direction by driving. The first system includes a supporting portion configured to support an acting portion that acts by a reciprocating motion in the predetermined direction, and the second system includes a sliding portion connected to the supporting portion via the elastic portion.
