An imaging device having a housed state in which a plurality of optical members of an imaging optical system is housed and a shooting standby state in which at least a part of the optical members is moved on a subject side includes a stage configured to be movable along a plane orthogonal to an optical axis so as to move an imaging element which obtains a subject image by the shooting optical system in the plane, a plurality of optical member holding frames each of which is configured to hold each of the optical members and a lens holding frame driver configured to drive each of the optical member holding frames, the stage includes an engagement hole facing to the shooting optical system, and one of the optical member holding frames includes an engagement projection which is engageable with the engagement hole.