An actuator latch of a hard disk drive to lock an actuator so that the actuator does not rotate when a magnetic head installed at the actuator driven by a voice coil motor is positioned on a parking region. The actuator latch has: a locking protrusion installed at the actuator, a latch member rotatably installed on the basis of a predetermined rotation axis, the latch member rotating with the rotation of the actuator when the magnetic head is parked so that a hook intercepts the locking protrusion and prevents it from moving in an opposite direction to a parking side, and a latch member driving unit rotating the latch member to release the locking protrusion from the hook. The actuator latch of a hard disk drive selectively intercepts the movement of the locking protrusion at the actuator so that the actuator is locked and unlocked. The actuator can stay strongly locked and be softly unlocked without any impact.