HIJMS Mikasa in January 24, 1899 at Vickers shipyard construction. Handover ceremony was held on March 1 in Southampton handed over to the Japanese navy. July 17 to reach the port of Maizurudomicile.
December 28, 1903, Mikasa become joint fleet flagship. February 6, 1904 began to participate in Russo-Japanese War. August 10 to participate in theYellow Sea. December 28 into Kurerepair. February 21, 1905 to reach the town ofBay, then to the ground as a stronghold in the Tsushima Strait training. May 27, in Tsushima Strait and the Russian Baltic Fleet naval war on the 28th. Mikasa in the Battle of Tsushima Strait led the Japanese combined fleet into a most decisive naval battle in the history of the Russian fleet is almost completely wiped out. On the other hand, the Japanese lost only 116 individuals and three torpedo boats.
September 11, 1905, Mikasa in Sasebo harbor because the rear of the ammunition depot explosion and sank, the accident total 339 dead. August 8, 1906 to salvage Sasebofactory for repair, the first Fleet flagship again on April 24, 1908 active duty.
1914 Mikasa make decisions based on the Washington Naval Treaty of waste ships. September 1, 1923 because of the Great Kanto Earthquake hit make Mikasa docks, flooding, September 20 Expulsion in the Imperial Navy .