Sebuah kapal penyelamat kapal selam berfungsi sebagai kapal penyokong permukaan untuk operasi penyelamatan kapal selam dan penyelamatan laut dalam. Kaedah yang digunakan adalah operasi McCann Rescue Chamber, Kenderaan Penyelamat Laut Dalam (DSRV) dan operasi menyelam laut dalam.
^Dominguez, Gabrel (7 Jun 2018). "Vietnam begins work on first submarine rescue vessel" (dalam bahasa Inggeris). Jane's Information Group. Vietnam’s state-owned Z189 shipyard has begun assembly work on the first submarine rescue vessel for the People's Army of Vietnam Navy (PAVN). A keel-laying ceremony for the ship, known as MSSARS 9316 (multipurpose submarine search-and-rescue ship 9316), was held on 24 May at Z189’s facilities in the northern coastal city of Haiphong, said the shipyard in a statement.