List of Republic of China Navy ships

The Republic of China Navy is the maritime branch of the Republic of China Armed Forces. The ROC Navy's primary mission is to defend ROC territories and the sea lanes that surround Taiwan against a blockade, attack, or possible invasion by the People's Liberation Army Navy of the People's Republic of China. Operations include maritime patrols in the Taiwan Strait and surrounding waters, as well as counter-strike and counter-invasion operations during wartime. The Republic of China Marine Corps functions as a branch of the Navy.
The ship prefix for ROCN combatants is ROCS (Republic of China Ship); an older usage is CNS (Chinese Navy Ship).
ROCN also avoids giving ships hull numbers that add up to or end at "4", as the Chinese pronunciation of the number 4 is close to the pronunciation of "death". This numbering scheme is more apparent on more newly acquired ships.
Note: The ROCN generally uses hull classification symbols similar to the U.S. system with some changes. The proper classification is provided when known.
Present fleet.
In June 2016, two "Oliver Hazard Perry"-class frigates of the US Navy, ex-USS "Taylor" (FFG-50) and ex-USS "Gary" (FFG-51), were handed over to the Government of Taiwan for the Republic of China Navy. The transfer cost was an estimated US$177 million. Following a reactivation period at Detyens Shipyard in Charleston SC, the ships sailed for Taiwan in March 2017 and arrived home in June 2017. The transfer of the ships includes the AN/SQR-19 Multi-Function Towed Array. Taiwan had previously been blocked from acquiring the AN/SQR-19, and the transfer of the system points to an anti-submarine focus in line with the "Knox"-class frigates they will likely replace.
Decommissioned ships.
"Long Chiang"-class patrol boats.
US designed; based on PSMM MK.5
SX-404-class submarine.
Decommissioned in 1973.
Ex United States Navy ships.
"Chi Yang"-class frigate ("Knox" class)
"Chao Yang"-class destroyer ("Gearing" class)
World War II era DDs later upgraded to DDGs in three batches, Wu Chin I, II and III. All ships in this class were retired by 2005. 
Wu Chin I Batch: (Retired in 1980s-1990s)
Wu Chin II Batch: (Retired in late 1990s)
Wu Chin III Batch: (Retired in 2003–2004)
Benson-class destroyers
Gleaves-class destroyers
Fletcher-class destroyer
Allen M. Sumner-class destroyers
Ashland-class dock landing ship
Casa Grande-class dock landing ships
Evarts-class destroyer escorts
Cannon-class destroyer escorts
Rudderow-class destroyer escorts
Yangtze Patrol gunboats
PCE-842 class patrol craft
Admirable-class minesweepers
Crosley-class high speed transports
Charles Lawrence-class high speed transport
Auk-class minesweeper
PC-461-class submarine chaser
PGM-9 class gunboat
Infantry landing craft
Medium Landing ships
Tank landing ships
Ex Royal Navy Ships.
Arethusa-class light cruiser
Flower-class corvette
Harbour Defence Motor Launches
Castle-class corvettes
Ex Royal Italian Navy Ships.
Azio-class minelayer
Ex Imperial Japanese Navy Ships.
Akizuki-class destroyer
Atami-class gunboat
Etorofu-class escort ship
Fushimi-class gunboat
Hashidate-class gunboat
Hiburi-class escort ships
Kagerō-class destroyers
Matsu-class destroyers
Mikura-class escort ship
Minekaze-class destroyer
No.4-class submarine chaser
No.13-class submarine chaser
Seta-class gunboat
Sokuten-class minelayer (1938)
Sokuten-class auxiliary minelayer (1913)
Type C escort ship
Type D escort ship