The latest Radar System and ECDIS System on Oshima-maru have been completed in December 1993 but had a problem of not coping with lack of disposal of system work. The new RADAR system was installed in January 2010 and the new ECDIS system in December 2011, the problems were improved, so that the system can equip clear Radar display, import latest Electronic Navigational Chart. The author describes the outline of the updated system and applications.