Haijian 84 (Chinese: 中国海监 84) was a China Marine Surveillance (CMS) cutter in the 8th Marine Surveillance Flotilla of the South China Sea Fleet[1][2].

[3][1] On July 2013, when the China Marine Surveillance was merged into the China Coast Guard, Haijian 84 was transferred to the China Coast Guard, however it's new pennant number is still unknown.

[4][5] The Haijian 84 has a displacement of 1740 tonnes, a length of 88 meters and a speed of 14 knots.

[1] It additionally carries an Acoustic Doppler current profiler and a fathometer able to measure depths up to 5000 meters.

[2] On October 25, 2012, Haijian 84 entered Philippine claimed Chinese territory near Huangyan lsland.