Haijian 46

History
People's Republic of China
Name	China Haijian 46 (CMS 46)
Owner	East China Sea Branch, State Oceanic Administration
Operator	4th Marine Surveillance Flotilla, East China Sea Fleet, China Marine Surveillance
Builder	Wuchang Shipbuilding
Launched	April 2005
Commissioned	May 8, 2005
Homeport	Ningbo, Zhejiang
General characteristics
Displacement	1,101 metric tons
Length	73.9 meters
Beam	10.2 meters
Draught	3.4 meters
Depth	4.6 meters
Propulsion	D683 diesel engine
Speed	14 knots (cruise), 16 knots (maximum)

Haijian 46 (Chinese: 中国海监 46) is a China Marine Surveillance (CMS) ship in the 4th Marine Surveillance Flotilla of the East China Sea Fleet. On September 11, 2012, after Japanese Prime Minister Yoshihiko Noda decided to "purchase" Diaoyu Islands from its "private owner", Haijian 46 and Haijian 49 set out to conduct law enforcement cruise operations in territorial waters around Diaoyu Islands.