The Fleet Submarine Force belonged to the surface force for the self-defense fleet of the Maritime Self-Defense Forces. It is a fleet organized around submarines belonging to the Self-Defense Fleet of the Japan Maritime Self-Defense Force.^[1]

On 1 February 1965, the 1st Submarine Group was newly formed under the Self-Defense Fleet. On 16 October 1973, the 2nd Submarine Group was newly formed under the Self-Defense Fleet. On 10 February 1981, the Submarine Fleet was newly formed under the Self-Defense Fleet (Headquarters, 1st Submarine Group, 2nd Submarine Group, Submarine Education and Training Corps).

On 9 March 2000, a new edition of the 1st Training Submarine. Initially, the submarines belonged in the group were JDS Asashio and JDS Setoshio.^[2] On 22 March 2002, the Yokosuka Submarine Education and Training Detachment was newly established in the Submarine Education and Training Corps. On 1 October 2020, the Submarine Fleet Command moved to the new Maritime Operations Center, a new government building of the Self-Defense Fleet Command completed in the Funakoshi area.^[3]

• JS Kuroshio
• Oyashio-class submarine