On 4 July 1906, "Wörth" was transferred to the Reserve Formation of the North Sea. She initially served as the flagship of the unit, but on 1 October she was replaced by "Kurfürst Friedrich Wilhelm". She was then decommissioned and her crew reduced to only a maintenance staff. Over the next eight years, she was reactivated only twice, from 2 August to 13 September in 1910 and from 31 July to 15 September the following year; both periods were during the annual autumn maneuvers. She served with III Squadron in both exercises, and was the flagship of the second command admiral for the squadron, "KAdm" Heinrich Sass. She returned to reserve status on 15 September, and a month later was docked in the in Kiel to maintain her for future service.