An image stabilizer that compensates for external vibrations by moving an imaging unit. The image stabilizer includes a first frame on which an imaging unit is installed, a second frame that is connected to the first frame using three points and guides movement of the first frame in a first direction and second direction, and a third frame that is connected to the second frame using three points and guides the first frame and the second frame to move in a third direction and fourth direction, which are perpendicular to the first and second directions.