Provided is an optical unit with a shake correction function, said optical unit being capable of ensuring a space wherein a drive mechanism and the like are positioned between a side surface of an optical module and a side surface of a stationary body, even when the optical module is supported by a gimbal mechanism in such a manner as to be able to swing with respect to the stationary body. In the optical unit, a gimbal mechanism is disposed by utilizing corners of an optical module and corners of a square tube-shaped body section of a stationary body. In other words, the optical unit is configured in such a manner that: a rectangular movable frame is positioned between a rectangular second frame of the optical module and a rectangular frame secured to the square tube-shaped body section); and a first corner and a third corner of the movable frame are swingably supported by corners of the rectangular frame. The optical unit is further configured in such a manner that a second corner and a fourth corner of the moveable frame swingably support corners of the second frame.